I'm starting to think the integy crystals have a quaility control problem in the manufacturing process. My Buddy just bought a couple of sets a weeks or two ago, and used these crystals in his Futaba 3PD. Well it was basically glitch city for him. He pulled them out and stuck his futaba crystals back in and no problems since. Its a shame since the integy crystals are about 1/2 the price as Futaba ones.