Nice chart. Too bad I'm off of it.

My wingspan is 82", so I have to use the formula.
(Wingspan - 15) divided by 2 = draw length
82 - 15 = 67
67/2 = 33 1/2"
My actual draw length on compound bows with straight wrist and slightly bent or 'soft' elbow is 33". If I straightened the elbow and used high wrist it'd be 34". So the formula/chart gets you very close.