I sent a request on their drilling form, based on the stats I knew (rev dominant, 15mph, pap is 4 1/2) and was told pin to pap 5 1/2; mb to pap 5 1/4; with pin 3" above midline.  Can someone elaborate on this drilling?

you forgot 1 important detail...

what ball is it?

Looks like a modified Forward Roll drill.  Check the drill sheet but Med. track flare, forward roll, early revs.  It promotes length but in my A. Hook it's a smooth arch for me, with my 16 mph and 230 rev rate.

Edited on 1/3/2007 10:21 PM

Edited on 1/3/2007 10:25 PM

Did Fred (Morich tech guy) say where to place the MB?  On or near VAL or close to thumb?  They use 5 standard MB positions to help determine shape?  General rule of thumb is the closer to the VAL the smoother off the corner the ball will be.  Close to the thumb is flip shape and like a 45 degree (about halfway between thumb and MB) is hard and continuous.  Have you laid the ball out yet?  It seems as though the MB should be closer to the thumb or to the strong position based on some quick sketches, which should give you some decent continous backend.  I have one drilled at 3 3/8 by 5, and it's pretty sharp with continuation....

Hope this helps,

Bill
Bowling Services Unlimited
www.bsuproshops.com
Vise Inserts Staff
www.viseinserts.com

I imagine the distance from the val would be about the same 5 1/4".  Or the mb will be at or around the thumbhole.