I was wondering if there was a general summary of the basic drillings and their reactions when it came to bowling balls? I know there are a ton of different ways to drill bowling balls and they will give a million different reactions, but I was wondering if there were general guidelines I could follow because I will start coaching bowlers starting next year, and I would like to be able to have a general idea of what certain drilling layouts do to their bowling balls. All I really know right now is pin up makes it go longer, pin under fingers makes it roll earlier, moving the CG further out makes it snap harder at the end (I think), the pin further out to the right (for a right handed bowler) means it will hook more then one between the fingers. This is somewhat helpful (If it is all correct lol), but any tips would be greatly appreciated. Thanks.