Drilled mine with a standard label shift with 1/2 pos. side. Pin is at 1 o'clock.  Well I must say this ball hooks quiet a bit, and it does it hard! Basically if you don't have enough oil, this is much too much ball for the condition.  However on a heavier oiled condition, this ball revs up strongly in the midlane and finishes just as hard.  This ball hooks more than the El Nino 2000, and will need more oil to compensate. Otherwise another great ball from Storm at a more reasonable price.

Thanks to Doene Moos and Bill Supper for their support. This exotic looking Black/Lime Green Polished Particle ball is a truly another "Bang for the Buck" ball choice for bowlers on a budget. I drilled this ball with a strong layout. I drilled this ball with the pin 3 3/4 from my P.A.P. and swung the mass bias at a 75 degree angle to my P.A.P. This is a strong ball when it comes in contact with dry. Like all Polished Re/Pro actives it goes long, not as long as a polished reactive but above average length. What I like about this ball is the backend reaction. Once it makes the turn to the pocket it does not stop. If you are looking for a ball for medium dry to medium oily lanes with strong backend reaction and a low price consider this one as your choice. Congrats to Storm for producing a low priced, hard hitting monster and thank you for reading this review.

Specs:  3 3/4" pin to PAP, 4 3/4" CG to PAP, pin 1 1/2" above PAP/ring finger line.  Coverstock is wet sanded to 600, step polished 600 and 1200.  There is a balance hole 1" below my PAP on the VAL, 25/32 in diameter, 2 1/4" deep.



Lane Condition:  Moderate taper with oil applied 26', buffed to 36', stripped backends.  Oil run 10 units on board one to 15 units on board 11, and 18 units on board 12 to 26 units on board 20.



On my fresh house shot, this ball works fairly good, but not spectacular.  The backend reaction is rather weak, even on the first shot.  From there, it gets progressively worse.  Even with my combination of speed (15-17 MPH), revs (15-20), axis rotation (30-55 degrees) and tilt (5-15 degrees), I can't get this ball to do much with the surface it has.  The coverstock has been resurfaced by me after with was tracked up, and honestly, the ball worked better tracked up.



When it was tracked up, I could use the ball all night long as long as I had sufficient oil to get the ball down the lane to my breakpoint (4-6 board).  Any sort of light oil and the ball would read it too much.



Now, with the ball polished, it barely reads any dry portion of the lane, and I really have to rev up the ball to get the necessary movement out of the ball.



Because of the nature of the drilling (more on the label side), the ball doesn't have much power, and given the weak reaction, it hits like a tomato.



I've never had success with any Storm ball that's been resurfaced to a polish, so I would say that polishing this ball wouldn't be a wise idea unless you have a lot of hand and a lot of axis rotation.  Give it a fine wet sand finish if you want this ball to be a good ball.

The Power Bolt is quickly becoming the most dependable ball in my arsenal.

The ball is drilled with the pin next to my ring finger, with the CG kicked out almost 4 inches, slightly below the midline.  The ball had 2.3 top weight before drilling.  The final layout is 4 1/2 X 2.  The extra hole is on my axis point, however it is not straight in.  I tilted it towards the bottom of the ball to replace a little bit of the top weight.  For me, it gives me a bit more flip.

The reaction of the ball is very steady, yet powerful.  It gets through the heads very easily, but goes into a nice roll in the backend.  I get a somewhat similar reaction to the Rock Star I drilled the same way (see my Rock Star review), however since this ball is not a "true" particle ball (it is somewhat pearlized, but reacts more like resin), plus the core is a bit stronger, the Power Bolt flares more and gives me more of a flip in the backend.  The backend turns out to be a very strong forward roll, but not a roll out (unless I throw it too slow, in which case it's my fault anyway).

A great ball/layout combo for a wet-dry lane condition.  The ball comes hard off the dry but sets in the pocket very well.  It also still moves a bit if you tug it into the oil.  The ball will not cover as many boards as the big hookers out there, but it still hooks more than enough to get the job done and then some.

Like I said, quickly becoming my benchmark ball.  I am very pleased.

Having read the GPS review, I must say that my experience with the ball was much different. I found this ball to have the best length and back-end of any particle ball I've thrown. You definitely need some oil as this is a pretty strong cover, but if you have it, the ball will perform very well. I drilled mine with a 75 degree layout, 5 inch pin to PAP. This is an ideal ball for tight back-ends. Not a great wall-ball, too much if you send it out to the dry. Has worked well for me on flatter conditions with oil.
Definitely an arsenal ball, but if you bowl a lot of tournaments you'll find it useful.
--------------------
Mike Carlson
pbamike@aol.com

Thanks for reading my review.
This ball worked best for me on a fresh house shot with medium/light oil and clean backends. The polished surface of the ball promotes plenty of length with a smooth arc to the pocket on this condition. Great carry too. If the backends are dry enough, it will probably snap for you. I haven't encountered that condition yet so I don't know for sure. It didn't recover very well when there was carrydown oil. This ball was more speed sensitive compared to other Storm balls too. Unless you can put a lot of revs into the ball, don't try to fire the ball too fast or it will finish weak. I never had any problem with this ball overhooking for me, that's for sure! Storm says this ball is for medium/heavy conditions. I disagree. My El Nino Gold and Boost both hooked 10-15 boards more than the PowerBolt. Perhaps it would work on the heavier oil if it was sanded.
If you want a ball that hooks out of the house, look elsewhere. If you want a ball that is pretty easy to control, has plenty of length and decent carry on lighter oil, you might want to check out the PowerBolt.

i found this one on the rack already drilled and i decided to throw it. i threw it and loved it. a great ball. it works on all oils and even a good spare ball. thats what i use it as. i can hit any pin in the rack that i leave. even the 10 pin are no problem with this ball it is very easy to control and i recomend it to anyone. 8-10.