hardbern,
I have no idea as to how much glass I take off. I am continually re-checking my tiller until I get to my desired weight. Most people think it's crazy but I have so many nice old bows nobody wants that I don't mind if I destroy a bow. So far I've only had one break and that is on my tillering board as I stress them to 34 inches draw to see if they will break before I try to shoot them (I draw 27 inches). My knife grinder works real well in just skimming off a little glass on each pass. I never sell any bow I've reduced weight and I do not reduce weight on other peoples bows.
Airdale,
This was way before he was making bows for Ron. I go way back with John's bows. I have several of his real early self bows that are spectacular. No problem in leaving hogs as they are all over! tippit