^^^ For the last time, get off the drill sheet thing. The drill sheet is %100, dead-on, right. A and B are nothing more than markings on a picture representation, for certain MB-PAP distances. Those MB-PAP distances correspond quite well, thank you very much, with what the drill sheet says each MB placement will do in regards to the ball's reaction. The sheet might not "look" like the final product on your ball, but everything is correct, WHEN YOU LEARN HOW TO READ AND WHEN YOU USE THE PROPER AND CORRESPONDING MB PLACEMENTS!!!!
Some people just want to start arguments, for no reason whatsoever. Get a life, bro, and maybe some basic bowling knowledge while you are at it.