Got this ball 3 months ago.  I am a lefty, medium revs, medium speed, and a medium axis of rotation.  I have been bowling in 2 different houses with it, 1 league in each house a week.  Pappy's Pro Shop (Garden City, NY) layed it out stacked for me, 3 & 3/4" from the Pin to my PAP, with the Mass Bias in the strong position.  

In the first house, there is light-medium oil from 8 to 8, outside of that completely dry.  As with most balls, if you get the Ace to those dry boards, you have an incredible breakpoint that will take down all 10 pins.  I find myself swinging almost 15 boards on this shot.  In the second house, there is a medium amount of oil in the middle from 7-7, outside of that has a very light layer of oil.  This is the shot that the Ace has most impressed me on.  Even though every board on the lane has oil on it, the Ace has no problem being able to play straight up the second arrow or swinging it from about 15 to 5.  

This ball has a very consistent roll, a great preferred spin axis, and incredible hit and mix at the pin deck.  The match of coverstock and core puts together a great package that is versatile to many conditions.  Recently, after the ball had about 110 games on it, I noticed a lack of performance on the 2nd house shot I described above.  To compensate, (being that I did not want to retire this ball that early) I had the ball dulled to 1200 grit with scotch brite, just enough to remove the storm Moonshine Polish and add a stronger grab for the ball.   Since doing so, the ball has been rolling like it originally had and I bought a Recharge yesterday to compensate for the lighter oil that this ball might have too much traction for now.  See my other reviews for that one.  Overall, I give this ball a 9 out of 10.  It lost a point only b/c I wish the surface had held up a little longer.
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"Storm is # 1!"
F-M-3

Drilled with Leverage.  Pin to the right of ring finger.  The ball reads midlane like no other, then has an exceptional backend reaction.  It also has great carry.  Another great ball by storm.  The only thing that I dislike about the ball, is the smell.  Wintergreen it smells like chewing tabacco.  First choice out of my bag. Right out of box 296 series 764.
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GhettoBowler

Got a hold of a second Ace (this time a fifteen-pounder, 3" pin, 2.6 oz. top), drilled pin above ring finger 4 7/8" from PAP, CG 3 1/2" from PAP, RAD between thumb and strong (a.k.a. a benchmark layout).  I want to thank Lizcano's Pro Shop in Toledo, Ohio for drilling this ball.

I tested the Ace on a pair that had been used by an early-morning ladies league (broken heads with carrydown).  First game out of the gate I rolled 279 (solid 4-pin in the seventh frame!).  Rolled this ball in league play at Harbor Freeway Lanes later the same evening, and the Ace was way too aggressive on the backend during shadow balls, despite getting some decent length and read!

Switched to the Depth Charge for a straighter trajectory and a tamer backend.  After two games, I then decided to give the Ace another try, standing on 30 and aiming between 15 and 20.  Finished the last game with seven strikes for a score of 246 and a respectable 659 series.

This Ace (versus the sixteen-pounder from last October) is more to my liking:  better control, greater versatility, and strong pocket action from a deep inside line.  Along with my Depth Charge, the Ace will provide a 1-2 punch for normal league conditions long or short.
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Behind the approaching front, the perfect Storm is about to be unleashed...

Last year I had an average of 204. My Primary bowling balls were the Core Power LRG and the EL Nino. This year my average dropped to a 184 (depressing). I purchased the X Factor Ace and it was awsome. I bowled a 615 out of the box. And that was with careless mistakes. This ball jumps from the backend. Great pin action from this ball also.

Right handed
15-19 mph
Ave amount of hand
15.3
2-3 inch pin

Pin set up above the fingers to the right and cg kicked in and mass bias by the thumb weight hole as well. This ball is very nice, gets good length and revs up nicely in the mid land and hits very hard. Good for med oil if u have some dry. This is a very nice ball from storm. I give it a 7 out of 10 just somethings I think could be better great job storm.

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Mike

Not sure what to drill, drill a Storm or a Track there is no better.

279  259  234 = 772

The Ace has quickly become my #1 ball now (although I still love my Triple-X) The reaction on the pins is tremendous. I've had the ball for about 2 months. Have had the following games: 279(2) 278(1) 250-260 range(5) and shot my first 300 this past week. I know that having the ball drilled right is also important. Thanks J.D.!!!
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Just Stormin' through!

purchased week ago to replace my x factor deuce that had seen better days. Was averaging around 195 with my duece. had it resurfaced and it lost all power.  was looking for a ball to push me over 200+. in the first two leauges i bowled a 676 and 656. two of my highest ever. ball snaps and hits with less effort from me. very forgiving when you hang it out. would give it a A++++
THANKS TO STEVE AT LINCOLNWAY BOWLING IN YORK PA!

med to heavy oil with storm pattern #1