I'm new to the bowyer world, but have made 2 self bows of ash. First became kindling, second is usable. Have one more ash stave that I wanted to make into a bow for the friend that let me cut down the tree. The stave is 64", which I'm guessing is on the short end for a self bow. Not opposed to taking a stab at sinew backing if I need to. What would be my best design on this length?