I have decent biceps, but though they seem to be devloped enough, I still have a space (gap) between the muscle and the elbow. When I flex my biceps, with my palm facing my shoulders, my bicep rises up, but there is a gap about 1.5 inches from the bicep to where my forearm connects to my upper arm. When I flex the bicep with palms facing forward, away from the body, the bicep seems to fill the gap almost completely, and when doing a straight arm pose my biceps look like they run from the shoulder to the elbow joint as they should. I read about this problem in the Arnold Encyclopedia and Arnold recomended doing preacher curls and/or arm blaster curls to fill this area in. I have been doing them both, most often preacher curls, religiously for months and months now, and though this area has filled out a bit...I just don't understand why it seems to be stuck with a gap now. Is this genetic? I know most people have this gap a lil anyways but is there any way to elminate it better?