My bows are 1.375 starting out. I like the tenon to be .800 so .287 off each side. 3.5 is the releif length. That is brown glass on the pads. The tooth picks are not needed
. I eyeball the lam line up when putting it on the wrapping jig. I need to round the corners and put several coats of CA glue on the tenon then paste wax on the tenon then ready to wrap.