I kee reading posts telling folks to absolutely NOT lock their bow-arm albow. Whatever else you do DO NOT LOCK your elbow!!!
Why is this?
I learnt to shoot FITA style target archery, long before I took up instinctive barebow shooting & the one thing I learnt above all else is to LOCK THAT ELBOW SOLID!
An unlocked elbow is liable to flex & is unstable, where a locked elbow gives good solid alignment.
So much is posted regarding bone structure & how the weight of the bow is taken along the bones of the arm & across the shoulders to relieve muscle pressure. This makes sense as bone is far more solid than muscle. However if you put a flexible hinge in the centre of this supporting bone structure, we're once again relying on muscle to prevent the arm collapsing.
Why do folks keep insisting on the unlocked elbow? Is to prevent string-slap? Is it a throw-back to compound shooting? I'm confused?
If I may be allowed to teach Granny to suck eggs;
If you don't want to catch your arm with your string, a bent elbow is really, truly NOT the best solution. Correct shoulder rotation is far, far better. Let me expand.
Stare straight ahead of you. Hold out your bow arm to yourside as though you were holding your bow in the shooting position (position your thumb so that it's pointing behind you & your palm is up) . Now, bend your elbow until your finger tips touch the top of your head. Slide your fingers down your face until you're touching your nose. Now, extend your bow arm back out (Your thumb should now be pointing straight up) This is the correct shoulder rotation. You'll find that you can rotate your shoulder without moving your hand (your wrist can rotate in the opposite direction) In this position your forearm is well out of the way of the bowstring, your elbow is locked & th bones from your wrist, forearm, upper arm & shoulders are all in a straight line, giving you excellent stability
Your elbow should be facing the 9-o'clock/3-o'clock position (as opposed to 6-12)
It can take a while to get used to, but shooting with your shoulder rotated & elbow locked out improves stability & strength & also has the benefeit of adding a good amount to your drawlength. It probably makes you more attractive to the opposite sex too!