Im not looking to make a war bow but figured this might be a good place to ask this question.Ive got a yew stave 30 rings per inch or a little more,1/2 inch sapwood and am looking for around 70 # at 26 inches.My question is would it be advisable to thin the sapwood since the last several inches of the bow would be mostly all sapwood,appreciate any advice offered,thanks Dave.