I wouldn`t suggest just randomly drilling a 105 and put the mb in the track. if you are looking to contol the ball reaction use ono of mo~s contol drillings from his drill sheets. Or read up on his new dual angle drilling system that appeared in bowlers journal. As I have stated before to receive the optimum performance on a Morich ball know you pap, tilt, approx revs, ball speed, and axis rotation. It will allow you to lay the ball out properly for your style and get the reaction you are looking for.
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Ray Lathrop
Bsuproshops.com