Nothing but headaches - Griffin Armament Paladin Brake Taper Mount

I regret getting a griffin can, I've had mostly nothing but problems with the company. After returning two muzzle devices that were said to fit my application but didn't the way I wanted to, I get two of these. The one for my 15 went on great, the one I got for my ar10 on the other hand different story. It damaged the threads on the tip of my barrel because the device wasn't threaded deep enough. Everyone raves about their customer service but for my experience they were almost non existent, I fear having to contact them if I have any more problems down the road.