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Author Topic: Practical application of differential potential in a low rev game  (Read 9643 times)

lefty50

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Politely... High rev guys and theoretical experts can bypass this one please. I'm interested in practical responses from other low rev players, certainly below 300 and preferably below 250....

I understand the potential of differential, but all too often people talk about theoretical results without looking at the practical impact based on style. For example, last year I mapped out every ball I've used for the last 15 years, and found a consistently favorable result when the differential was above .050, and higher ratings as expected as the potential increased. I use very similar drills, so disregard all the theories of changing differential. From a practical result viewpoint, higher differentials result in a better result for me. For other styles, that is not always the case.

For other low rev players, do you find yourself over a period of time consistently preferring equipment with a higher diff potential? Have you found that balls which others say are great are weak for you and your game?
Thanks in advance

 

bergman

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Re: Practical application of differential potential in a low rev game
« Reply #31 on: March 23, 2017, 01:02:27 PM »
As a higher speed-to--low revs senior player, more often than not I need the ball to slow down. For my game, core differential play a much lesser role than does coverstock composition/preparation. For the very short period of time that the ball is in contact
with the lane surface, it's the coverstock that has the best ability to effect ball motion.
Core differentials have some effect, but this effect will be more pronounced with lower speed players. Still, it's mostly about the coverstock, regardless the style of player.

leftybowler70

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Re: Practical application of differential potential in a low rev game
« Reply #32 on: March 23, 2017, 03:16:38 PM »
^^this^^

lefty50

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Re: Practical application of differential potential in a low rev game
« Reply #33 on: March 23, 2017, 03:27:43 PM »
Understood, but not evidenced as highly as the standard quoted 70/30 ratio in my tests. It would be hard to say coverstock isn't primary, but as a lower speed lower revs senior player on the left side and having mapped out success of every ball I've owned the last 15 years (I didn't keep records before that), I need all the help I can get.... Every bit counts. Below 2.5 Rg and above .050 diffs have been a friend. There's too much evidence to say there's no impact. I'm not saying majority, I'm saying statistically significant. You're certainly right though, the ball must slow down. I just came back from practice where that was easily visible, so I agree fully.
Forgive me please, but after 40 years in IT, I and my whole $%^& team are being outsourced as of yesterday, so I doubt I'll be engaging in much more conversation on this thread for awhile, but the feedback is, as always, appreciated.
« Last Edit: March 23, 2017, 03:30:45 PM by lefty50 »

ignitebowling

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Re: Practical application of differential potential in a low rev game
« Reply #34 on: March 23, 2017, 06:33:06 PM »
If you believe it, nothing else will convince you otherwise.  You have undrilled numbers. You don't throw undrilled bowling balls.

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lefty50

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Re: Practical application of differential potential in a low rev game
« Reply #35 on: March 23, 2017, 07:10:11 PM »
 I think you may be making my point for me, and reading a bit too much into it as well. The simple truth is that additional differential helps a low rev bowler. While it sounds easy to say you do not throw an undrilled bowling ball, that ignores the fact that the use of a high differential layout with a high differential yields more potential for a low rev player.  Again, it kind of cracks me up that everyone thinks I'm trying to change the laws of physics. I'm definitely not. Cover stock has a majority component, but again and respectfully, use of a high differential ball is still statistically significant in a  low revolution players game.

Impending Doom

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Re: Practical application of differential potential in a low rev game
« Reply #36 on: March 23, 2017, 07:37:20 PM »
I think you may be making my point for me, and reading a bit too much into it as well. The simple truth is that additional differential helps a low rev bowler. While it sounds easy to say you do not throw an undrilled bowling ball, that ignores the fact that the use of a high differential layout with a high differential yields more potential for a low rev player.  Again, it kind of cracks me up that everyone thinks I'm trying to change the laws of physics. I'm definitely not. Cover stock has a majority component, but again and respectfully, use of a high differential ball is still statistically significant in a  low revolution players game.

...When it's used in the right environment. Do you even ball down, bruh??

ignitebowling

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Re: Practical application of differential potential in a low rev game
« Reply #37 on: March 23, 2017, 07:54:00 PM »
You mentioned best results with a diff of .050 or higher.  On the lower scale what is too low or doesn't work well?

.048 .045 .040 etc
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JustRico

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Re: Practical application of differential potential in a low rev game
« Reply #38 on: March 23, 2017, 09:10:52 PM »
Dude he lives in his world where nothing else matters...he honestly believes this is his private forum and tries to control it and responses
Wonder why no one responds to him seriously
When he was a kid I'm sure he stomped his foot a lot just to get his way
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BradleyInIrving

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Re: Practical application of differential potential in a low rev game
« Reply #39 on: March 24, 2017, 03:04:02 PM »
I can recall 2 balls I've owned (RG Silver Streak and LM Satisfaxion) whose diff are .040 and looking at the track flares make it look like they were .075 or higher..

just my .02 :)

avabob

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Re: Practical application of differential potential in a low rev game
« Reply #40 on: March 28, 2017, 01:27:38 PM »
No question that shell has a bigger impact than core on ball reaction.  However, it does seem that in recent years core shell matchup has become more important than either one or the other in a vacuum. 

JustRico

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Re: Practical application of differential potential in a low rev game
« Reply #41 on: March 28, 2017, 03:10:18 PM »
Surface will always dictate
Act any player and they'll take surface over layout every time
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Good Times Good Times

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Re: Practical application of differential potential in a low rev game
« Reply #42 on: March 28, 2017, 03:42:56 PM »
I use very similar drills, so disregard all the theories of changing differential. From a practical result viewpoint, higher differentials result in a better result for me.

This kind of stood out to me in OP's post.  How can one simply disregard all theory of changing differential?

I was wondering if some of you (rico/ignite/doom) could elaborate on this as it's a little perplexing to me.  Even though the drills would be "similar".......the ending differential would be different based on pre-drilled core shape, no?  Even if the drills would be exactly the same, core shape after drilling would be different even with different .050 differential balls because the core design is different in different lines of balls.

What I'm not understanding is the lack of focus on the differential of the drilled ball.

For other styles, that is not always the case.

Why?
GTx2

JustRico

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Re: Practical application of differential potential in a low rev game
« Reply #43 on: March 28, 2017, 03:46:13 PM »
He believes only what he sees and doesn't believe anything to refute it such as physics or their laws BUT he is proving a point that surface does dictate much of whatever ball reaction he is seeing...
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Tom

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Re: Practical application of differential potential in a low rev game
« Reply #44 on: March 29, 2017, 12:17:59 PM »
I'm a low rev low speed senior bowler. I Do perfer high differential balls as long as the RG is on the medium to high side. Most senior bowlers suffer from low ball speed so we need length along with enough flare for a strong finish. I currently start with a .058 differential ball with a medium high RG. Actually my favorite bowling balls are no longer available. I'm always scanning eBay for some of the old chestnuts, you never know what you may find.


xrayjay

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Re: Practical application of differential potential in a low rev game
« Reply #45 on: March 29, 2017, 04:47:53 PM »
I didn't realize 0.10 difference can either carry the 10 pin or not.

I have a ball, medium pearl 0.44 diff and flares a lot. but, it was a bit late turning the corner or reading the friction. So between blocks, I borrowed a round red pad thingy from a former BR member who left this site and was in the industry for many years - worked with phil and dale?? (track) anyway....the ball was magic.....I wonder if 0.54 would of made a difference with this ball and its max flare layout..?? instead of the pad.....
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