I have and I'm not a fan. Only deer I shot with one, I shot in the back of the skull between it's ears. I was squeezing when he took a step and I tried to make the bow go off and made a bad shot as a result. I shoot my Stan Quattro with back tension technique, but I can still make it go off like a trigger release and it's still very accurate shooting that way. Back tensions are great for target and training, but it's not something I'll hunt with again.