Hi guys I just finished up my maple /sinew bow complete & Im getting ready to start another , since my time is so limited & would like to finish another by spring I was thinking a sinew backed hickory D bow the dimentions I came up with are 63 in NTN with reflexed tips 1 1/4 at the widest tapering from 2/3 of limb to 1/2 knocks but never having made this type of bow was wondering about the side profile , how long the center section should be before the limbs start to tapper ? Im looking to get 50lbs @ 29 in. Any sugestions ? Also was going to reverse string it after sinew for reflex.