At a 3D shoot at my club, the winner shot with a bent arm. This shoot had a couple of factory pro's and some a couple of guys who shoot on a national level. His arm was so bent that I would estimate that it took 2" off of his DL. (He is tall enough that the 2" doesn't matter, he still shoots about a 30" DL). So it is possible to shoot well with a bent arm as long as you can repeat it every time.

That being said, IMHO the straight but not locked bow arm will be the most accurate for the vast majority of archers. If your hunting clothes interfer with the shot, you should do something about the clothes, not your shooting form.

One disadvantage to the radically bent arm is that it requires a lot more strength to shoot. The bent arm archer above told me that he had been away from archery a few years and had not yet built up enough strength to shoot with a back tension release. release. Unfortunately, I did not get to ask him more about it.

A second disadvantage is that over the years, you will probably have elbow problems. He's too young to think of that, I'm not

JMHO.
Allen