bill is a very nice guy and this is a plus,but when you buy a bow you want performances.I own something like 90 bowa and at least 12 custom bowyers bows,the top ones.Well the Zipper is on the very top of them. I have a XST with recurve Evolution limbs and I can't be more happy with it.craftmanship is really at the best,woods are hand selected with great care to details.The bow is maybe the quitest recurve I own,fast accurate and forgiving.In the beginning I was afraid that being so light(like a LB)and with a very low brace heigh it could be unstable,I was wrong death in the hands like none.I think it is one of the best designed bows ever.IMHO.