Hello,

Just got this rocket by storm (used).  It really doesnt do much for me. Is their anything I can do to the surface or larger sidehole to give me more hook.  I bowl up the 10 board up the back of the ball. Last year avg 203. 16 mph.

Cav

http://i96.photobucket.com/albums/l176/Jerry_Greer/20171209_221601_zpsewug3fsg.jpg

Have you had the ball deoiled since you bought it?  If not I would do that as well as have the pro shop resurface it back to factory finish before changing drilling or doing surface myself.  With used balls never know how well prior owner took care of it (unless of course you knew all the owners).  Some balls in fact after they get oil logged enough even deoiling won't save from ball death which is why I don't usually buy reactives 2nd hand.  Also too much surface or too aggressive drilling can actually retard hook instead of increasing it depending on other factors (lane conditions, your style, etc).  In general though yes lower grit surface will hook more as well as say a double thumb drill hole.

(edit: Doom has the right idea.  Knows a ton more about layouts than I do).