I can't get a different outcome in the situation you describe. I can, however, make two slightly different angled shots using the same perception and pivot for each shot, just as I can use the same fractional aim FG or each shot. This is possible due to slight angle differences with CIT factored in. Sometimes, if the shot angle difference is equally offset by a difference in CIT, both balls might go center pocket. But normally each shot goes into a different part of the pocket as the angle changes slightly but the aim remains constant. If I move the ob a little, then a little more, I will eventually reach a point where that particular perception and pivot misses the pocket entirely and a different perception must be used.
It sounds good when Stan says the balls "connect to the right angles of a regulation pool table", that every shot tracks to "center pocket", etc... But in reality the entire pocket is being used, and as the ob begins to miss the pocket, a different perception/pivot must be used in order to send the ob back toward the pocket.
If the book and truth series can explain or show how the ob tracks to center pocket even when a particular perception and pivot is nearing its limits, then I'll eat my words and graciously admit that I was wrong about the system utilizing the entire pocket.
Stan has demos of him shooting into a 2 1/2" pocket, I'll see if I can find it. To accomplish this with any sort of consistency, of course the system has to work, but you had better have some serious fundamentals as well.