So I started balancing my props using the recommended dubro balancer and the balancer would work some times and other times you could static electricity causing errors. I could put my hand about 6 inches from a blade and it would move. I switched back to the cheap magnetic balancer and it worked great. Got this one from hobby king cheap. My results after balancing 22 props. "A" props always heavy on the side with the "A". "B" props 95% heavy on the side without the "B". 1 prop balanced fine. The amount out of balance was completely random.