I dont care for them. Buddy of mine shot a good buck with one and Im reasonably convinced that the broadhead didnt open up at all. hes always shot swackers before but decided to give these a try. Needless to say, hes back to swackers now. We lost the buck, had decent blood for 75 yds and it just plain quit. I personally use the innerloc expandables in my crossbow and the only complaint I have is that typically the blades end up getting bent after a pass through. Im still stuck in the stone age with my compound, using 100 gr thunderheads.