That pretty cool bud. awesome look. I do something similar on my bows. When im shooting my bows in I use a piece of tape on the side and use a pencil or marker to make a line where the sweet spot is. I usually start about a inch and a quarter above center and go from there. When I find that spot where it shoots best that's my rest spot. I then tite bond 3 a shaped wedge where that spot is. Then I sand and shape the wedge until it blends into the handle before clear coat and handle wrap.