I waited a few weeks to give my review of this ball, because I wanted to see how it played on a variety of patterns, as well as how the ball has held up over the past several weeks. I drilled three of these balls to date.

The first one, was a miss, the pin placement on the ball as well as top weight, and layout, was just a miss all around. Not the balls fault.

The second Gravity was simply amazing!! I drilled a 2" pin out ball with the pin at 4.5" from pap, and key in the strong position (half way between val and first track ring), no balance hole needed. This layout put the pin just to the left of my ring finger. I used this ball with box finish, as well as very mild to moderate surface. I found a very continuos, strong move from the ball. The best quality of this ball is it's consistent reaction. The
Gravity Shift does not over read, or under read on medium-light to medium heavy oil with short to moderate lengths. The Gravity Shift has a much more broad window of use than I normally would expect from a pearl cover ball.

The third Gravity I drilled has a 3.5" pin out with the pin at 5" from pap, and above my ring finger with the key in my thumb, no x hole. This ball I keep polished with Reacta-shine. This drilling and ball gives me a VERY SMOOTH reaction off the dry in the backends. I have a Domination with the same drilling, and this ball compliments the Domination very well. When I need to go very straight on wood, with a shorter pattern, this drilling is what I reach for. I do need a lot of friction in the backend end to help this drilling around the corner, but being a lefty, we often see that.

The Gravity Shift is a very strong, continuos ball. This cover and core combination will allow you a little longer play on the lanes with out reading the transition as much as other equipment. The Gravity will also allow you different shapes of backend reaction depending on drilling, so make sure you see your local certified pro-shop operator to give you the best reaction for your needs.
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Tommy Gollick
Storm Regional/Pro Shop staff
Red Crown Pro Shop Harrisburg, PA
stormbowling.com

I agree with most on this orb. Layout is simple pin under the fingers and the cg slightly kicked to the right. I'm an power stroker if that makes sense. I got the ball towards the end of the bowling season and it quickly became the first ball out of the bag. The league I bowl in uses a liberal amount of oil which works well for this ball. Once the lanes open up you can play ANYWHERE. This is a great addition to the Storm Line.

I have forgot the measurements for drilling.

I tend to throw low revs with decent speed
Lane conditions were a low oil, as well as a fresh house shot.
On the low oil the ball reacted very strong for me starting at board 20 and throwing out to board 5 or so and smoothly hooking back in for a flush shot however on the fresh house I had to play at board 5 and play down and in for my flush hits, on light hits it still scattered pins well enough to pick up the sloppy strikes.

Storm Gravity Shift
The Storm Gravity Shift has the new R2X coverstock combined with the second generation Shape-Lok HD (lower RG) assymetric core. I was expecting it to go quite long and make a big hard move. Instead, I got a pleasant surprise.

My Specs
I’m a RH cranker. 450+ RPM. PAP is 4½ across and 3/4 up. Ball speed is medium high at 18 mph.

LAYOUT
The ball in question had 2.8 oz Top Weight and a 2½" pin. My Gravity Shift is laid out in a medium length, firm arc drilling. Pin was laid out 65° from the PAP with a 60° Pin to PAL Buffer, MB 40° from the PAP. Remember that layouts are relative to your Positive Axis Point (PAP). PBA fans will see Chris Barnes, Tommy Jones or Wes Mallott throwing similar layouts when seeking control downlane.

Precision layout and drilling were carried out at Bowler’s Edge www.bowlersedge.com.au

COVER
The cover stock is factory polished R2X Pearl. R2X is a new coverstock and it reads the midlane in an even more controlled fashion than it's predecessor (R2S). This gets the ball through the heads easily for of energy retention downlane, giving the Gravity Shift ample punch in the backend. The colour is Violet, Cherry and Silver, which matched with the gold glitter engraving, makes for a very attractive ball. The cherry chocolate scent is pretty strong out of the box, but tames down quickly. (I didn't like the smell initially, but it's growing on me, especially after throwing this ball!)

REACTION
I've bowled this piece on Brunswick Anvilane with a 43ft tournament pattern and on the Kegel Middle Road Challenge Series pattern. Here's how it went.

43ft tournament pattern (Crown)
This ball is very clean through the heads, makes a positive midlane read, and then a controlled move left. Not weak at all though as it had a real “churning” roll into the pocket, revving hard while holding a line. I’ve punched it out for tournament conditions with a hook-set layout and it made the 43 ft pattern look pretty easy as long as I moved when the lanes told me
to.

40ft Kegel Middle Road
This pattern played a little tricky early and I could use the Gravity with a straight/soft hand very confidently. When the shot opened up, I moved left with a polished Dimension which looked great. Once the Dimension's carry suffered (i.e. only shot 203), I stood in the same spot with the Gravity Shift and it knocked the lights out for 256!

I have also used it on the house shot with a softer hand. It's a knock out when there's some carry down.

CARRY
Being a low RG ball, I expected that the Gravity Shift would have strong impact. I wasn't disappointed. The Gravity Shift’s pin carry is superb. The ball blew some big racks, sent some impressive messengers and even tripped a couple of 4 pins which is most unusual for me. Even from the soft angles I was playing this ball slaps a lot more 10 pins than I expected. Unless there was grevious pilot error, it got the corners out convincingly at a house notorious for standing them up. I shot a 279 and a 258 with this ball and averaged 235 for a 10 game set using this ball and a Dimension.

SUMMARY
The Gravity Shift surprised me with the level of control it gave me. I was able to make small, simple moves and hold the pocket all day with it. This ball clears the front of the lanes easily with a confident backend move while maintaining excellent pin action. The R2X cover can be readily tweaked with sanding or polish for fine tuning. I would recommend it for use on house shots when you want some extra boards of hook or for medium volume tournament shots.

p.s. Took the cover to 2000 Abralon and it make this ball the nut for burning up early and setting up. I can throw the high hard one as an "A game" on the fresh with this ball now to iron out the over/under, then switch to the Dimension once I need to circle a bit more.
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Jason Doust
Storm/Vise Australia Amateur Staff
http://www.bowlersedge.com.au

o o p

 o  cg
    key

That's the drilling i went with for this ball, basically just a stacked 4x4 drilling.  I believe lol.  Basically all i did was order the ball and it came with 3.34 top and a 3.5-4pin.   My span is just under 5inches and the pin is right next to my ring finger and the CG is just above my thumb, with the Key a bit below the thumb hole.  

First night of bowling was a black light college league and the ball reacted very nicely, plenty of length and a nice smooth backend.   And this is on a second shift league.   And even though is a THS, I can basically play anywhere on the lanes with this ball, i can move deep, or play up the gutter.  But first nite i used this ball i went, 222-253-194, thumb ended up swelling up so last game was a bit of a struggle lol.

Last nite, same thing, second shift league my sanctioned league, i went 174-224-225.  First game, i was just kinda all over the place.   But i did notice, that the ball did get a bit squirrely on some carry down at the break point.  So i had a couple shots that i really liked but, just didnt make the turn.  So i ended up playing 5th arrow and having my break point @ the 12board.  Which solved the squirrely problem.  

I will say, this ball is freakin AWESOME!!!!!!!!!!!!  I am very very pleased with the drilling on this ball and the reaction i've gotten with it.  


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" Lift Your Skirt Grab Your Balls and Learn How to Bowl "

I have the same layout as masonize 12 below, except my layout is 4.5" from PAP

Ive used the gravity shift as a backup to my Dimension on sport patterns (read my review of the Dimension) but as my goto ball for house shots.  With the pin under the middle finger and mb kicked out, this ball goes long down the lane and has a nasty(in a good way), hard hitting backend.  It clears to the back of the lane really well, but sometimes can jump up a little early but thats from the nature of the layout. I can use this on sport patterns from 36-42ft and any house shot around. Overall I really like this ball and would recommend it to any one in a league trying to improve their striking/scores, or a sport bowler who needs to fill a void in the middle of their lineup.

Please read my reviews on the dimension and rapid fire pearl and how they compliment the dimension for a complete ball arsenal.

So I got my second Gravity to compliment my first one.  I love this ball.

The Bowler (me):  I am a stroker with about 270 RPMs, speed is around 16.5-17, and my PAP is 4.5 over, 3/8 up.  I have been bowling on AMF synthetics that are old and have a lot of friction.  

The Ball:  I got it drilled pin above ring with the MB directly right of thumb.   It came out to 4.5 inches pin to pap, and about 5 MB to pap.  My goal was to have this go longer than my other G. Shift, and have more pop in the back end.  

The shot I bowl league on is about 38 feet, super bumpers to the right and a monster puddle in the middle.  The absolute definition of adult bumper bowling.  And this ball does what I wanted.  It's still very rolly, just because I think the ball does that, but it gets down the lane noticeably further and snaps noticeably harder at the end of the pattern than my pin-down Gravity.  They are wonderful complements to each other...when one is not enough, just swap and I'm in a happy place.

On the tougher patterns I've bowled on so far, this ball stinks up the joint.  My PBAx league is on basically brand new Pro AnvilLane, and they play super tight.  Anything pin-up just doesn't work for my game, so I never bring it anymore.  But I'm sure on lanes with more wear and tear on them, it'd be a good fit for the shorter patterns (Cheetah, Viper) or when I need to open up the longer patterns a bit more...but just not where I'm bowling PBAx at, haha.  

All in all, it does what I want and handles medium patterns well.  Anything with carrydown, or longer patterns/heavier volumes and this is an easy fold.  A winner for THS and shorter stuff.

If you'd like a pic of the drilling, just let me know.
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Proud Supporter of Rob Stone
Obviously, you aren''t a golfer.
Some stayed in the foothills, some washed logs like teeth.