This the 3rd time I have posted this in about 3 days,Sorry but it applies.
This person is arguably the best compound shooter in the world.NO BEND,doesn't appear to be locked either.
Pretty much like BG says.The only thing I warn about on what he said is the elbow gets turned out,I like to say the forearm gets turned because if the elbow gets too far out,it becomes a little unstable.The elbow is out and down.You are not trying to get the elbow pointed parallel to the ground,but you also don't want it pointed straight down at the ground either.