now as a older bowhunter and target archer who grew up with many archers in the old days ,some have past ,some are just to crippled and beat up they all have gave me arrows , bows and about 100 new and used Zwickey broadheads. i have tried shooting this great old broadhead out of my Ravin x-bow and that was a disaster , i also tried them out of a x-bow with no compound wheels on limbs and then the Zwickey broadhead shot very well for me. thanks i will check out the used broadheads. Pete53