I trust him with my life, the lives of my family, and everything I own. 0% chance he will handicap your rifle. He built it, he wants it to shoot. And if he gets beat, he wants it to be fair and square.
There's 2 things I can say about Tony. He builds the finest rifles and trains the smartest dogs I've ever seen.
As far as getting beat fair and square, there's a few of us that are dedicated to taking down Jason Garvey on his own range.