Got a hickory stave I've had near floor tiller for months now. I'm really considering flipping the tip a bit maybe near to that of a static recurve. My question is, about how thick do I need to leave the wood? I'm guessing that you don't want any bend from the point of the flip on so once I start scrapping it down, I don't want to get it too thin. I'll be shooting for 50-55# at 28".