First, I had the honor to be able to have my hand and grip looked at who I consider the best "guru" ever, Bill Taylor. Although he asked about my lack of bevel in the fingers, it was spot on.
Second, I talked to a friend about it, told him my current span and pitches, and he throws out at me "7/16 left, 0 f/w in the thumb" when my current pitches are 1/4 fw and 1/8 right.
Now, I'm not ignorant to fitting practices. Sounds a bit radical. Am I saying I won't try it? Not at all. I would plug and redrill something just as a test bed. But it sounds awfully off the wall.