Stock shape, drop at the heel and style can skew the numbers some, but I prefer a stock around 13 1/2" of pull. A bit more, bit less, NP. I'm 6'1" weigh 240lbs. and have a 34" sleeve. I can shoot about any stock length, by adjusting the way I hold my shoulder. The longer than 14" stocks are harder to hold well because you have to stretch to reach them. Longer than optimum reduces accuracy for me, unless shooting benched. I've never noticed a relationship between length of stock and felt recoil.
It is easier to shoot a stock that is slightly short, than one that is too long for you.
Desired stock length, when discussed on a forum, usually ends up in a peeing contest, with stock lengths of pull growing in relationship to a man's ego or desire to impress. We've also had this discussion on our trail walks, as well as the shooting/wiping/hard-to-load tight combinations subject.
I've found, over the years, that someone who has done a lot of shooting, can adapt to a stock that is a bit too short of optimum, but one that is longer than optimum is difficult to shoot well.
Quite an interesting subject.