I am not arguing for poorly designed bows with heavy tips, or successively adding miniature dumbbells to the very tips of bows as we mechanically release arrow after arrow through a chronograph. Ryoon, you brought to our attention that no matter how efficient we design our osage bows, the outer limb will have more mass than that of a lighter wood. In my experience, Osage likes a heavy arrow. I think the two are related. I guess I will have to do my own controlled studies to provide support for this hypothesis....Lets take another look in that horses mouth! By the way, my tests will not be limited to arrow speed at launch, as I feel that is a misleading measure of performance. How about energy imparted to a target at various distances?