I have two Cooper John Pro sights. In the last few weeks I have had the RED fiber optic material on three pins snap off at the head of the pin. I stole a RED pin from my second sight to see if it was just a bad batch on that particular sight but it happened again. The dealer said CJ is sending new pins. No problem. I just wanted to see if anyone has had this problem? I'm shooting a Merlin Omega cam so it's not a vibration problem. I slso put a sims small dampener on the sight just incase there was some vibration and it still snaped. I've had other sights with .019 pins and never had this problem. I'm calling CJ today to see if it's a problem with the .019 pins and RED in particular. Jerry