It sucks to see this happen to people, but honestly I wouldn't buy used servos from someone, and I would never buy Hitec either way, with my luck in the passed they have never worked right for me, and if they did, not for long. With that said I do own a couple hitecs but thats because they came in a package deal. IMO Airtronics/Sanwa, KO are some of the best, and these new JR's seem very impressive but I havent tried therm yet. I'm still running my old Air 59/60 combos in all my buggys and truggies.