RE: draw length ?
More accurate? Look at the form used by most Olympic shooters and decide this question. You won't see many bent elbows. I have always shot with a straight, but not locked elbow, using bone-to-bone contact. This pretty much means that I don't have to use arm muscles to keep the arm extended.
I wouldsay that, in your case, if you have to lock the elbow then your bow's drawlength may be a little long for you. Shorter is always better, especially in the case of a hunting bow where heavier clothes are often the norm.
Probably just as important for string clearance is the position of the hand in the grip. The hand should be turned out at about 40 degrees or so, shooting off the meat of the thumb, with the hand and fingers totally relaxed. In simple terms, if you are gripping the bow then you're doing it wrong. This hand position allows for less torquing of the bow and automatically turns the elbow out and away from the bowstring.
A good bet, if you don't have the draw length down pat, is to have a bow that is adjustable for draw length. All can be tweaked a bit by twisting the cables or string, but much more than 1/4" and you should have a different module or cam to achieve the best performance.
Years ago I used to shoot about 28". Over the years I've found that 27" is closer to what I work best with, + or - 1/8", depending on the bow. 1/2" shorter and I can handle it. 1/2" longer and the bow sucks, and my new bow is just that. New modules are on the way as I write this.
Just some food for thought. And sorry for the rant.