I've used as much as an inch away in the fingers, and currently use 1/2 away. 4 1/2 spans on both fingers. It just feels good. My ring finger gave my problems years ago, but not recently. I also use my thumb holes very tight.
I agree with Stan, kinda hard to do this on the internet, so many variables. Hightracker did not mention how much bevel he uses either. All those pitches and spans could be perfect, but if he bevels the crap out of the thumb hole, well.......
Without seeing for myself, I would say to try 1/8 reverse and 1/8 right and go from there. Probably not more right, unless your thumb joint is really loose. If you make too many changes all at once, you don't know what fixed the problem.