Has classic inner core, wrapper around with the Power Track pearl cover.  Pearl green color.  16lb rg rating is 2.49 with a dif .037.  This ball is intended to go longer than the solid, but not as long as the pearl, and the lower rg core allows this ball to have a more controlled hook than the solid, but still has the length because the cover is weaker than the solid.

Okay, you've read what everyone else has said so I won't go off on a long winded rant about how good or bad the ball is or give it any type of score.  I'll just tell you what to expect if you're like me.

If you're stepping up to your first reactive ball from something else (plastic/urethane) then this isn't a bad choice.  I play a down and in shot and it slides a good distance down the lane and reads the midlane well, and on light patterns or for broken down conditions it snaps pretty aggressively.  

Hammer and everyone else seems to have rated this ball lower than it's actual potential in terms of hook, imo.  If you aren't the most experienced person around and usually bowl on light/medium oil conditions, you could do worse than the Sling Blade.  

Update: Had the ball for one year and it was starting to lose it, so I gave it a resurface and then put factory finish polish back on it and it's as good as ever.  Regained a TON of predictability.  Have re-started using it as my #1 go-to ball.

I got this ball slightly cheaper than advertised because the pro shop guy was trying to get rid of his hammer line due to slow sales in his shop.  He only had on 15lb and it had 1 inch of pin.  He drilled it with the pin 1 inch diagonally right below my fingers.  The CG is almost stacked just slightly to the right of the pin.  There is an balance hole 3 1/8 inches parallel to the right of the CG.  Sorry, I'm not a proshop guy and a novice to ball drilling.  
      On Saturday I bowled on synthetics with dry insides and wet outsides with carry down from the 5's out.  This ball was straight and smooth through the heads making a vicsous break in the back.  I could only play straight up for a while on 10 before moving over 7 or 8 board by the end of the 3rd game.  I have some hand (I am a power stroker).  I had to play a tight line with this one and due to the drilling and cover I was unable to really go deep with this one.
         Today I shot in a house with long oil and crisp backs and this ball perform well in this condition.  I play from 5 to 15 and this ball was very smooth with a nice sharp flip in the back.
                I really like this ball.  I never had a hammer (don't count the sledge hammer I bought and only shot 5 games before giving it away to a friend)and I was impressed.  For med to light conditions this is a great piece of equipment.  Great ball by hammer!!!!!

Got mine with a label leverage drilling during the 2003 JOG National Tournament. Didn't do well with it during the tournament because the lanes had some serious oil one day and bone dry the next. Went back home and blew the pins away with it shooting 677(243,236,198)in practice playing 20 and 9. This ball is great for a regular house shot (avg. 190.1), overblocked (736) and a reverse block (660). This is one of the best entry level balls on the market. Hammer did their homework.

Picked up a barely used sling blade from a guy at my home lanes.  It's 15.3 lbs. with a 2-inch pin, not sure about top weight.  He had it drilled pretty strong (stacked), and i kept it the same.  

I needed a good med./light ball to use on my usual house shot, and this ball is a great fit.  It gets through the heads with relative ease, but does need a little head oil.  If it catches a good deal of dry, it will take off.  It starts up early for a reactive pearl, but that is actually one of the positives with this ball.  Since it has a nice arc instead of a flip, it is very controllable.  You have a lot of area with this ball, but more so if you miss left than right (righty).  

Some thing I noticed with this ball is the carry.  99.9% of the time, the hit/carry is explosive.  But the other .1% of the time, it is confusing.  I have left multiple 8-10's and a few 5-7's on a shot that last frame absolutely blew the rack.  Besides that, though, this carries better than any other ball I have (on the condition it is meant for).  Carries light hits every shot, and takes care of the 10 pin with ease.  

Ratings:
overall - 9/10
versatility - 8/10
With it's stronger drilling, I can use it on almost from med/heavy on down.  Still, though, it is too strong for true dry, but I'm sure that a weaker drilling would take care of that.
control - 10/10
carry - 9/10
I cant wait to get a power diesel or the switch blade. MIKE

The BEST HAMMER EVER!
Lane Conditions: Medium-Light Oil
Typical Conditions: House Shot
Type of Lane: All Synthetic
What part of the lane did you play? Second Arrow
Did the ball track out? Normal
Weight of bowling ball: 14
Surface of bowling ball: Polished
What grit was the surface of the ball? Green Scotch Brite
Likes: This ball is a Great Complement to the Hammer line..
This ball is very versitle, and should be played straight.
Great for the people who can handle it.
Dislikes: Nothin...
Just keep a constant ball speed, and you should be fine..

I found this ball, and I KNEW I HAD TO HAVE IT! It fit me perfectly, and it only cost $60! Now, i dunno all the lingo for ball drillings, but this one was pin under my ring finger. So i dunno what that means. I played w/ it and it is very versitle... All that a warn is that, you must keep a constant speed, or else it over-reacts. This ball is a good complement to the Hammer line, since i didnt have a good first experience w/ the Blade Reactive(Solid) So GO HAMMER! And keep on making those good bowling balls.

DAMN!

Got this ball drilled pin above-between fingers and cg middle of my span. Wanted the longer drill for drier lanes.  THis ball is unbelieveable. On dry lanes it seeemed a little too agressive for the lanes, but on medium to a little heavey this ball is crazy.  Bowled my modified house shot for a few weeks now, and i start on 20 throwin 10...i end up 30 throwing 13. Just a little movement for a ball that reacts so hard. clears the head nicely and rolls so smooth down the lane.  ive bowled about 30 games so far, and this is a buy i wont regret.

THE SLING BLADE

My Sling Blade came to me with a 3 inch pin and 2.5 onces of top weight. The weight of the ball is 14 pounds. I drilled her straight up label.

I bought this ball about 2 months ago needing to bridge the gap between my Cuda/C 600 grit and my Barbed Wire at 1500 polished.

Normally I throw with average revs, moderate forward roll, and around 15 mph.

SHOT A:

I first used this ball on a christmas tree pattern to 39 feet on synthetics. I left the surface alone. I started throwing the ball from 19 to 8. The ball cleared the heads well and picked up in the midlane. The backend was a little stronger than I expected but was a good thing because the backends were tighting up a bit. I shot three games on this pattern and only had to move my feet 3 boards to the right. Carrydown... the ball was great at carrying corners even on non perfect shots. I shot 621 and left 2 ten pins during that set.

SHOT B:

The second shot I used the Sling Blade on is a fresh THS with dry outside 5. I took a green Scotch Brite pad to it. A good change. I started playing 24 out to 7. With the new surface, the ball picked up a good five feet sooner and tamed the backend out. Overall I got 4 more boards of hook. Again the ball cleared the heads well and made a swooping sweep to the pocket. Now I like. After 5 games and moving my feet 4 boards to left I was carrying all day. I averaged around 215 with a ball I didn't think would be able to swing the pattern without laboring its hook. Suprisingly good with carrydown with surface.

Overall

SHOT A: This would a pretty good ball to play up the boards with unless you have a great deal of hand. I would rate this around a 7 out of 10.

SHOT B: I don't know if the surface tweak made this great on this pattern or where I was playing. Good strong rolling ball that was even and controllable. I would rate this at a 9.5 out of 10.

A great ball to see how the lanes are playing. A strong pearl resin that could fit just about everybody. Even with surface it could be a medium/heavy ball with clean backends. Most tweeners would be able to use this on most conditions. A great benchmark and addition to any arsenal.

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Shot right through my heart.
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