The Gravity Shift offers the strongest ball reaction in the Shift series to date.

Pin to PAP(5 1/8" over 1/8" up) - 5 5/8"

Mass Bias Position - 3" right of thumb
CG Placement - center of grip
Balance Hole - none

Surface Preparation - Box Finish (1500 grit polished)

What I Was Looking For In This Ball Layout:
This layout was intended to give me much needed skid through the heads and mid lane with a very angular motion on the back part of the lane. I have used this layout before on Storm Dual Density cores and it tends to roll very strong for me. The Cover/Core combo on the Gravity Shift looked perfect to try this layout again.

What I Ended Up With in the Ball and Layout:
Exactly what I wanted. I do not know that this is really the best ball for me int he first game when the shot is fresh, but when they start to break down and I need to get in and know I can clear the heads smoothly and have the ball make a left from wherever I want this is it.

The ball motion is awesome, the first few times I threw it I was worried. Because of the darker coloring of this pearl cover, the ball looked like it was skating down the lane never to return from the right side. After I got more comfortable with this motion I knew it would come back from any part of the lane I wanted.

The last two weeks I have not thrown this ball until the start of the second game but from there on out I used nothing but the Gravity Shift. It compliments the Attitude Shift better then anything else I have thrown since I drilled my Attitude.

If you are looking for something for medium/medium-heavy oil lanes or something to get through the front and middle part of the lane and have
plenty of energy left for the backend the Storm Gravity Shift should be in your bag.

Bowling, like many other endeavors, is easy to learn but hard to master.  This especially true regarding picking up spares.  Few of us are so good that we never leave pins behind after the first ball.

It's important to be concerned at the beginning of each frame with what you are left with as far as spares to pickup. So plan ahead.  and, whatever you do, avoid the 7 - 10  split.

Picking up spares takes a lot or practice. It has been said "Pick up the spares and the strikes will come." That is quite true.

There are around 1,000 different spare combinations. Some people have a special ball to pick up their spares which is drilled differently.

Below is a diagram of the pins and their positions. If you are a beginning bowler, it is important to familiarize yourself with this pin diagram.

The 7 pin leave and the 10 pin leave are usually picked up by a far right (7) or far left (10) roll of the ball.

Some spares can be picked up by rolling a strike ball, if the 5 pin is part of the leave. Taking out the 5 pin hopefully will pick up the other pins.

The following are some spares and possible solutions for picking them up:

• The 6-9-10 leave would be picked up by the far left starting position and going cross lane.
• The 4-7-8 leave would be picked up by a starting position on the far right and going cross lane.
• The 1-2-5-8 would be picked up by rolling a strike ball and taking out the 5 pin which will take out the others.
• 1-3-5-9 could be picked up by starting left of center.
• The 5-9 would be picked up by rolling from left of center. This is a hard spare to pick up because it is easy to pick off just one of the pins.

A sleeper spare is where one pin is left almost directly behind the front pin and the ball will pick off the front pin unless the hit is straight on.

The above examples are only a few strike combinations that are possible and maybe a solution to pick them up.

One important aspect of bowling a strike is having the right size ball which has been drilled properly for the finger holes.The release of the ball is very critical to bowling a strike. Putting a lift on the ball is key to success in bowling a strike. This is accomplished by squeezing the ball which causes the ball to rotate to the left hand side of the headpin.

Releasing the ball at the foul line rather than following through and getting the ball out onto the lane is not as likely to result in a strike. The ball can also be released without a lift which is a straight ball. A straight ball isn’t as likely to produce a strike.

There are three step, four step, and five step approaches used by bowlers. Four step is the most common, starting on the right foot and ending with a slide on the fourth step, which is the left foot.

The five pin is very crucial in bowling a strike. Putting the ball in the 1-3 pocket will hopefully take out the 5 pin which creates the pin action to take down the rest of the pins.