I have some measurements for my grip width. Please let me know what you think I should do in regards to grip:

First, here is the measurement from the outside edge of one ring on the bar, to the other:

31 1/16" (thirty one, and one sixteenth inches, of course)
I imagine that is pretty standard.( I guess it is anyway?)

(all of the following grip measurements are from the "inside" side of one index finger, to the other when gripping the bar)
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The distance between my hands when my ring fingers are on the rings:

25 3/4"
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The distance between my hands when my index fingers are on the rings:
29"
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The distance between my hands when my index fingers are just outside of the outside edge of the rings:
31
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My "wingspan"(measurement from tip of middle finger, to tip of middle finger, with arms outstretched like a bird's wings): 77.5"
I am 6'4" tall too, btw.

Considering these figures, what type of grip do you recommend for me? How far apart should my hands be in inches?