This is a bit strange. I used 6 of them last year, and as far as the actual"lighting up" function, theyperformed flawlessly. No damage to myGoldtip 7595s either.

BUT, I won't be using them again this year due to a different problem.I tried to practice with them, and after a couple of rounds, three of them cracked on the shot. Personally I'm convinced that they're simply not constructed well enough to handle the force that a 70# bow puts on a 500 grain arrow.