I just cut a super clean piece of ERC out of the side of a tree tonight and am hoping to make a long bow with it.  It is about 72 inches long and not so much as a pin hole in it.  The only thing I am unsure about is that it is nearly all sapwood.  Does the sapwood perform as well as the heartwood?  I think I read somewhere on here that it takes a little more set.  Also, for anyone who has harvested out of the side of a standing tree, is it necessary to have a notch in the tree for it to heal as was said to be done by the west coast native americans in TBB1 or will conifers still heal if it was a straight cut with a pruning saw.  Main reason I ask is because I am hoping to harvest another stave from the location in a few years as it is so clear of pins and knots.  Thanks in advance for the help.
               Kip