Stan has said that his system works best at about two feet apart and more. I have found that for balls about a foot apart or so, I can get the same results using a full tip of pivot rather than a half tip.
Now, I'm NOT saying it will work on all close shots. I haven't tested it that much. This is just a tip for those that are actually using it. It works for me, and might for you too.
I have graphic evidence in ACAD that a larger lateral shift is desired when the CB and OB are close together. At large separations like 6 feet the shift can be less tha 1/2 tip with similar cut angles as 2 feet....but I digress.:wink: