Indulge me and my ignorance of the subject of DI for the only "official" training I have had in the craft was Sharpshooter's book Get the Edge at Craps, which the publisher sent to me to review. I vaguely recall some discussions about what the goal of a particular shot is (e.g. fewer sevens, more sixes and/or eights), but has any author ever explained in detail the mechanics of how a shot, his/her's or any shot, produces that result? IOW how is it that I can better my chances for a predictable result if I set the dice in a certain configuration, grip them a certain way, deliver them a certain way, and have them make contact with the table at a particular spot so that they make contact with the wall in a certain way? It just seems to me that all of the DI discussions start at the wrong end of the process, with the possible exception of Linaway and his safe/unsafe arrays. (By all accounts, however, Linaway doesn't get into set, grip, and the like and is therefore not directly involved with DI.) Shouldn't the DI-wannabe start with the goal (e.g. Linaway's arrays) and work backwards from wall contact to determine how best to achieve that goal?