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Author Topic: Defiant Soul  (Read 36122 times)


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Defiant Soul
« on: December 04, 2012, 11:04:40 AM »
Ball NPS Score: 100.00
Roto Grip Deifant Soul Ball Specs:
- Color: Gold & Green Pearl/Purple Solid All colors do vary somewhat from the picture shown.
- Reaction: Mid-lane Control with Strong Backend
- Coverstock: 77Hâ„¢ Hybrid Reactive
- Core Type: Paragon Core
- Factory Finish: 4000-grit Abralon®
- Radius of Gyration (RG): 2.49**
- Differential (Diff): .054**
- ** RG and Diff are based off of 15 lb. balls
- Hook Potential: Heavy
- Length: Greater than Defiant - Less than Deifant Edge
- Recommended Lane Condition: Heavy Oil

Description: When the Defiant Soul was compared to the Edge and Defiant in testing Roto Grip found that the Defiant Soul read 19% more midlane than the Defiant Edge. They both have the same core but the newer Defiant Soul is a great combination of the best features of the solid and pearl. This ball is a great in-between giving you more length than the Defiant but less length than the Defiant Edge making this ball a little more versatile.



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Re: Defiant Soul
« Reply #1 on: December 19, 2012, 03:52:53 PM »

THS: Modified Stone Street (42 ft, 20 ml)
Sport: WTBA Athens (40 ft, 26.55 ml)


We got a chance to test this ball with 4 bowlers, stroker, tweener, power tweener, and cranker and on 2 different conditions.  The Defiant Soul is the real deal.  It's a strong ball with excellent midlane read and strong backend motion with lots of continuation.  Our stroker and tweeners all saw excellent motion while the cranker would need a much higher volume pattern to get good use of this ball.
This ball also offered excellent control on the sport pattern and allowed all bowlers to open up the lanes.


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Re: Defiant Soul
« Reply #2 on: January 09, 2013, 07:04:52 AM »
Defiant Soul #1: Layout: 50 x4 x 50 box condition 
Tested on: 40ft HPL house condition, ½ HPL and ½ wood 41ft house condition, and SPL with a 44ft house pattern.
The Soul tested well on the HPL and the SPL w/44ft THP. To stronger on the fresh ½ and ½ lanes. Once the conditioner was “pushed” up lane, the overall reaction improved.  Noticed on the SPL lanes, the ball did not slowdown in motion down lane like I have seen with the EDGE and Defiant on this lane surface.  The ball really reminded me of a Critical Theory in the box condition but a board or two stronger. Very, very predictable and very trustworthy of a ball. Great benchmark ball and any type of condition with just slight cover changes.


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Re: Defiant Soul
« Reply #3 on: January 09, 2013, 07:06:58 AM »
Defiant Soul #2: Layout: 60 x5 x 70 1200 grit then polished
Tested on: 40ft HPL house condition, ½ HPL and ½ wood 41ft house condition, and SPL with a 44ft house pattern.
This Soul worked better on the fresher pattern on the ½ and ½ lanes and the HPL lanes.  It went a little too longer on the SPL after the conditioner was pushed around after only a few shots.  I also found after 3-4 games with the 50x4x50, this was the next ball out that allowed me to play the same area of the lane without hooking a little earlier. This ball polished reminding me of my Mutant Cell Pearls I had a few years ago and did so well with in leagues and tournaments. Was a great ball to use on the 40ft Earl Anthony pattern after about 3 ½ games. A very predictable of a ball sanded or polished. A great benchmark ball and any type of condition with just slight cover changes.


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Defiant Soul by staffer Garrett Richardson
« Reply #4 on: January 28, 2013, 11:26:55 PM »
Hand: Left
Ball Speed: 16-17mph
Ball Weight: 15lbs
PAP: 5 left 7/16 up
Degrees of Tilt: 17
Layout: 4.5 x 4.5 x 3.5

The Defiant Soul is my favorite out of the 3 Defiants. With the surface at 4000 polish on a typical league night the Defiant Soul gives me that in between look of the Defiant and Defiant Edge to where it is just even enough to control like the Defiant but have the strong down lane motion of the Defiant Edge. I drilled both the Defiant and Defiant Soul the same with the pin in the ring finger and mass bias about a 1 ½ inches away from my thumb. The Defiant Soul gives me about a 5 board stronger difference from the Defiant which was surprising!

When I used the Defiant Soul on our kegel sport league which at the time was 41 feet I did not get a good read with it at 4000 out of the box finish so I changed it to 2000 abralon and the ball came to life on the long pattern. I was able to play more up the boards; around the 10 board and watch the ball move to the pocket with an even reaction. If you are a fan of the Defiant series this is a MUST to have in your bag!

If you have any questions about the Defiant Edge email me at

Garrett Richardson
Storm/Roto Grip Amateur Staff
Vise Inserts Amateur Staff
Pinole Bowler’s Supply


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Re: Defiant Soul
« Reply #5 on: January 30, 2013, 07:34:59 AM »



Type (THS, Sport Pattern etc):THS and Viper

The Defiant Soul is the most readable bowling ball that I have thrown in years.  The layout that I used was 60 X 5 ½ X 70 or pin under the fingers with mass bias in the strong position roughly 1 ½ from the center line with no hole. My axis point is 5 5/8 over and ¾ up with not a lot of axis tilt and my ball speed is around 15 mph. The Defiant Soul's arching nature will come in play on the short to medium and tough/flatter sports patterns for me where readability is key.

The first pattern that I threw the Defiant Soul on was a typical house pattern with low volume and about 36 feet in length. The Defiant Soul gave me the best reaction on the fresh than any other ball that I have thrown before. The over/under that I usually have was gone! I know that house patterns are easier but for me being a tweener the first game is usually adventure! The Defiant Soul is a readable bowling ball but has enough guts to throw pins around.

The next pattern that I used the Defiant Soul on the Viper pattern because it blended out the over under at the break point on the fresh. The Defiant Soul is smooth enough to blend the wet/dry but is strong enough to move left and follow the breakdown and will get through some of the carry down. I started the day playing around ten with modest angles through the front to the last game (game 8) playing between 20 and 15 with confidence. For me, the Defiant Soul is not a send the ball right and watch it turn sideways type of ball. Out of the box the Defiant Soul will go longer than the Disturbed but not as long as a Shatter. The Disturbed and Shatter are more violent at the break point while the Defiant Soul is more readable. 

The defiant Soul is my benchmark ball and will be in my bag whenever I bowl.

Likes:The mix of readability and power

Dislikes:sometimes not enough backend motion

Daniel Schaden
Storm/RotoGrip Pro Shop Staff
Vise Grip Staff Member since 2002
Bowlers Corner Pro Shop since 2002


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Re: Defiant Soul
« Reply #6 on: February 11, 2013, 08:34:52 PM »

Length: 39 feet


Type (THS, Sport Pattern etc): House shot


I tested my Defiant Soul on my 39-foot house shot.  This is the latest release featuring the Paragon weight block. This Defiant is offered with a 4000 grit Abralon finish Hybrid cover. With this version, I was able to play 2-3 boards deeper than with the Defiant Edge. 

My Soul is drilled with the middle fingers where the pin was with the CG in the palm and the mass bias in the strong position. This ball produced about 5-6 inches of flare.  With the hybrid cover, the ball skidded nicely through the heads on the fresh oil. Once the ball encountered some friction, it revved up nicely and made a predictable controlled move to the pocket. 
As with all the Defiant balls, it drove through the pin deck and devastated the rack.

The Soul has a very predictable reaction, and with the 2.49 RG and .054 differential makes it a great addition for the lower rev medium speed league player who needs that little extra to make the corner.

What I enjoyed the most about this ball is the controlled hooking reaction. It produced a nice dramatic hook to the pocket and destroyed the pins. This will be the ball of choice on medium and heavy league and tournament conditions.

The Soul is a nice ball to round out the Defiant line. This ball is a must have and a nice addition to tournament players.

Mike Johnston   
Roto Grip Staff


John Brodersen

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Re: Defiant Soul
« Reply #7 on: February 19, 2013, 12:04:25 PM »
Ball specs – 15 lbs 4 oz, 3.45 top weight, and 3.5 -inch pin.

The Defiant Soul was drilled using the dual angle method with a layout of 4 1/4 inch pin distance, 55 degree drill angle and a 65 degree VAL angle. Using Storm’s drilling methodology the layout is 4 1/4  X  4 1/2  X  3 7/8  pin buffer.  An X-hole was needed and was placed at the P2.5 location.  The surface was left OOB which is 4000 abralon.

The HP4 line Defiant Soul, which is a hybrid, was rolled on a left over 41 foot, 24 micro-liter house condition.  I threw some shots to get lined up and ended up standing 32 and targeting at 16.  Once lined up the Soul made the house pattern play very easy as it struck on 16 of 18 shots.  The Soul was clean through the fronts, picked up appropriately in the mids and unleashed a hard arc on the backend.  The Soul had plenty of energy on the backend with hit and carry being exceptional.  When comparing the Soul with the original Defiant, the Soul had more length and a stronger move down lane.  When comparing the Soul with the Defiant Edge the Soul picked up sooner and was not as angular on the backend.  The overall hook of the Soul was close to the Defiant and a little more than the Edge.

The Defiant Soul is a great fit between the original Defiant and the Defiant Edge.  If you are only going to get one ball in the HP4 Defiant line, the Soul may be your best pick for medium/heavy to heavy conditions.

John Brodersen
RG amateur staff


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Re: Defiant Soul
« Reply #8 on: March 15, 2013, 11:48:49 AM »
Weight:  15 lbs.
Pin Length:  3”
Drilling:  Pin above fingers, stacked
Pattern Length:  40 ft.
Pattern Volume:  Medium
Pattern Type:  THS, Kegel MotR

I tested the Defiant Soul on our 40 ft. house pattern, at box finish (4000 abralon), and on  Kegel “middle of the road” navigation pattern (39 ft.)

On the Kegel nav. pattern, I found the Soul to be my best piece.  It came off the pattern with a strong motion to the pocket without overreacting.  If I missed a board or two right, it still made a strong recovery to the pocket and carried.  It smoothed out the pattern for me, where others gave me more of an over/under reaction.

This ball is great on our 40 ft house pattern as well.  It’s a great compliment to the original Defiant.  This ball gets down lane and makes a slightly later, stronger turn to the pocket.  When the Defiant starts to read the mid lane to soon, I use this piece and it’s like having a fresh shot again!  The Soul has a very strong back end motion to the pocket.  It is always in my bag, for THS or tournament patterns.  I will not be leaving this ball home.  It is a must have for your arsenal!

Carol Teel
Roto Grip Amateur Staff Member


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Re: Defiant Soul
« Reply #9 on: March 16, 2013, 09:30:50 PM »
Defiant Soul
PAP - 4 3/16 over 1/4 up
Ball Speed 17-18 mph
Rev Rate 300-350
Right Handed
Layout 35 x 5 x 35
Surface Preparation: OOB

What I was looking for: I wanted this ball to be very strong and roll smooth. A ball I can use when there is a lot of oil to just hook and be strong and predictable.

What I got: This is a hook monster! The hybrid cover really helps this ball store some energy and that’s also why I went with a 5” Pin to Pap. I by no means have a ton of hand but to throw this on house conditions I had to stand in front of the ball return. Once there I had a ton of room and all I had to do was throw the ball right and watch it turn the corner and crush the pins.

This is going to be probably my benchmark ball for when I go out o nationals. This and the Disturbed are going to make a great pair on almost any heavier volume shot.

This fills the shoes of the original Defiant very well. It is a little cleaner through the front part of the lane and is a little more angular but doesn’t seem to trade length for overall less hook. It creates a little better entry angle in my opinion.

Have a little SOUL.

Steven Fagan
Storm Pro Shop Staff
Lexington, KY
« Last Edit: March 16, 2013, 09:36:28 PM by StormSteve »


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Re: Defiant Soul
« Reply #10 on: March 18, 2013, 11:59:39 AM »

Length:18 ft and buffed to 32ft

Volume:30 units

Type (THS, Sport Pattern etc):THS

Defiant Soul
PAP – 5 over and ½ up
Ball Speed:  15-17 mph
Rev Rate 300-350
Right Handed
Layout 4x4x2
Surface Preparation:  Polished

What I wanted from this Ball:  Clean throughout the front portion of the lanes creating hold when the heads dried up a bit and recovery when the oil carried down to the outside portion of the lanes. 

Result:  Exactly what I expected.  Good length and some recovery with a consistent arc.

I tested this ball on our at home house condition on our wood lanes.  The house pattern is heavy oil 16-18 ft. and buffed down to 32 ft.  Our typical house pattern is not an easy pattern and usually creates carry down on the outsides of the lane and a massive snap in the middle.  An out of bounds typically forms quickly and the mid-lane becomes very dry. 

The Defiant Soul is a hybrid cover-stock and I tested this ball on a fresh oil pattern immediately after the lanes were oiled.  I started at my typical area which is 30-35 with my feet and my target around 15 board sending the ball out to the 5 board.  The Defiant Soul was clean through the front part of the lane and picked up about the 30ft area down lane and gave me a great arc to the pocket.  I tested this ball for 6 games.  After each game I moved one board left with my stance and kept the same target area until the 4th-6th game required moving my target to 20 and sending the ball out to the 8 board due to the carry-down.  This ball continued to roll clean through the front part of the lanes and kept its arcing motion on the backend.  I am very impressed with this ball on our house pattern.  I was able to get the ball through our dryer mid-lane conditions and even get some recovery when I sent it wide. 

Compared to my Defiant and my Defiant Edge, this ball isn’t as angular as my defiant but much cleaner through the front portion of the lanes.  Compared to the Defiant Edge, my Defiant Soul did tend to pick up a little sooner and not flip as hard on the backend as expected on our lane condition.  This is a great addition to the Defiant series and is perfect addition for my in-between ball with my Defiant and Defiant Edge.

I have Drilled up 6 Defiant Souls for various customers and have only positive feedback.  This is an awesome ball!

I highly recommend to anyone purchasing the Defiant Soul first and deciding which direction to go from there when drilling up Defiant series.

Sean Baker
Roto Grip/Storm
Pro Shop Staff

Likes:Very clean through the front part of the lanes

Dislikes:Didnt recover from the out of bounds like I expected.



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Defiant Soul
« Reply #11 on: March 21, 2013, 10:05:45 AM »
Lay Out: 4 3/4" from PAP at 45* PAP angle and 60* VAL angle. Dual angle measurement would be 45/4.75/60. I have a 7/8" & 2" deep weight hole in the P3 position.

Ball Surface: I started box finish which is 360/500/4000.

Lane Condition Observations: I have thrown this on a couple of different patterns: Our league pattern which is around a 38' shot and I also threw this on our state tournament shot that was a 40' modified house condition. On our league pattern, the OOB finish was too early off the spot. I had to get inside of the oil line to get the ball down lane at all. When I did this the backend move was still very strong and the pins danced around the deck quite a bit. On the modified 40' house pattern, this ball came to life. The Soul rolled up very strong on the back end and even gave me some area to the right of target. The longer and more blended pattern is a better place to put the Soul on the rack. Our house condition is more medium length and medium volume and the Soul would need a smoother surface to compete better on that condition.

Other Ball Comparisons: I did get to throw it some side by side with my Defiant Edge, Disturbed, and Nomad Dagger. The Edge pushes about 3-5 foot further down the lane and was a good "ball down" option when the Soul started to check up to early as it had a similar look on the lanes. The Disturbed was very similar in that is was early reading, but the Soul pushed thru the front of the lane a little better. I would recommend "balling up" to the Disturbed if your Soul is not quite making the corner or loping too long off the spot. The Dagger was longer than the Soul and smoother/earlier than the Edge. The Dagger was not a good comparison ball because it is in an entirely different category and would need major surface to handle the volumes the Soul effortlessly takes on.
Final Thoughts: I see a good looking ball that is starting to make its way on the ball returns here in central Ohio. I am myself going to punch one up with a pin high layout and try to get a "stage" of reaction similar to the Defiant Edge that I am throwing quite a bit lately. Out one of these in your bag if you need something to bridge the gap from your stronger balls to your medium reacting balls.
« Last Edit: March 21, 2013, 10:16:46 AM by Bigmike »
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Re: Defiant Soul
« Reply #12 on: March 22, 2013, 05:15:51 PM »
The defiant soul is a great ball for a variety of different lane conditions. It gets through the heads clean and makes a good mid lane read with a strong finish. The Defiant series is one of the hardest hitting line of bowling balls available. The Defiant Soul is good ball for all types of bowlers. 


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Fantastic Ball
« Reply #13 on: March 25, 2013, 10:40:54 AM »

I decided to try a different layout with this ball. I put the pin way above my ring finger and the mass bias is right above my thumb. 
The combination of this layout and defiant soul gave me a ball roll in a part of the lane I didn’t have in my bag before. It is a great complement to the defiant edge. It gives me earlier roll but still strong on the backend. I ended up using this ball at the PBA regional in Pensacola on the Chameleon pattern. There was a fair amount of friction because the center had purchased a new oil machine 2 days before the tournament. This ball gave me the best look; it created a fair amount of hold for me. Also when the ball hit the pocket, my carry percentage was very high and the pins were kept pretty low to the ground.
Overall, this ball is a great additional to the defiant line. I would definitely recommend to put this ball in your bag.

Jeff Mersch
Roto Grip Amateur Staff
PBA Member


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Re: Defiant Soul
« Reply #14 on: March 29, 2013, 09:53:20 PM »
drilled this ball with the pin under my ring finger with the cg&mb kicked out to the right of my thumb.  i wanted this ball to pick up its roll a little earlier and still finish thru the pins with a punch. 
i tested it on 42ft fresh house pattern, typical heavy oil in the middle and tapered out to track area, but this center has an out of bounds past five.
my A game is to swing the ball across the boards, so i started with my feet on 30 and started the ball at board 25 and play out to the track area.  i was able to get to the pocket with ease and strike.  so i decided to see what kinda of area i had with the ball, so i pulled a few in and it held pocket, but the true test for me was to get the ball out in the out of bounds and see if i could get it back to the pocket, and true to form this ball dug in its heels and made it back to the pocket. 
i would definitely recommend this ball to any bowler looking to add a new piece to their arsenal or to replace an old one.  look for this ball at your local pro shop, you wont be disappointed. 
Charley Burge
Hammer staff member