I've shot some fixed heads without retuning, because there was no need to, namely the Rocky Mtn. Turbos. Before we went on an elk hunt opening week in Colorado, one of my buddys bought a new pack of NAP Shockwaves and tried out all three on a broadhead target. One of the three didn't open and though he had success before with the heads, he brought his tried and true Thunderheads along. Quite possibly a tiny sliver was in the one head's channel, but that was one sliver too many for him.

I am not bashing mech heads, they are just not for me. I just see it as this.........fixed heads are already open, mech heads must open upon impact and when I can use fixed blade heads that fly right alongside my field points then that is what I prefer to use.