I was just on Storms website looking around, and I've always been curious. When you look at the spec sheet for a bowling ball, and you see the track shape, and distance down the lane before it will break. Is there a specfic drilling, speed, and rev combination they base this pictures on, or is it just a computer estimation. They usually have them listed for cranker, stroker, tweener. I apologize if this is a dumb question, but I see several people look at these sheets and say I want my ball to do that and buy it. Just to find out they throw it too slow or too fast. I know it's the responsibility of your proshop owner to help out as well.

Pretty much the same riddle as with Brunswick's ball comparison chart. It shows, relatively, breakpoint shape and oil handling capabilities of a ball, but nowhere is an explanation how they'd come to the coordinates. No drilling or style info. Even the effect of surface changes is up to guesstimation.

Therefore, I'd only see this, as well as the Storm graphs, as a vague relative reference of what to expect. But anyone expecting a ball to move like the picture is IMHO retarded.
--------------------
DizzyFugu - Reporting from Germany
Confused by bowling? Check out BR.com's vault of wisdom: the FAQ section

If I was you I wouldn't go off any of those flow charts or lane diagrams that companies feed you.  A ball company is going to want to try to impress you into believe you can do this or that with a ball when it really can't.  Same thing with most of the videos the ball companies put out.  Like Randy Peterson shows the Shift can be good and the Angular One can look like crap, but you get and Ebonite guy and I think you might see the same results except reverse.  Your better off looking at the actual characteristics of the ball such as RG, Differential, and the Coverstock.
--------------------
When Chuck Norris sends in his taxes, he sends blank forms and includes only a picture of himself, crouched and ready to attack. Chuck Norris has not had to pay taxes ever.