Susan,Not brave at all. When I finish my grinding and make sure the tiller is correct, I pull these bows to 32-36 inches and flex them multiple time in rapid succession. If they are going to break, I want to see them break on my tillering board. Two things are happening...they surely don't have as much glass but the tillers are correct distributing the weight evenly and they are also holding back significantly less weight. I DO NOT re-sell any bow I reduce weight on and I refuse to take weight off anyone else's bow.