If one looks at Hill you can see that his arm is bent. I always say that if it worked for him, it can work for me in a shorter form. I at the advice from John Schulz went from 27" to 26", it was the exactly right thing to do. one can also say that Hill shortened his draw to get his arrows to fly. If that form makes the shot work better, arrow spine or not, it is an improvement in accuracy. I find that extra long arrows are harder to get out of a back quiver. With wood arrows, the extra length can add a variable guess as to what spine would work best out of longbow. I find that with cedars I get my best arrow flight with the the minimum length arrows.