I have the 3 blades and was practising 30 yard shots using the practise head and had a complete pass through an over used block 4x4. It went through it and through one board in a privacy fence that is 4 yards behind it. I found the arrow 15 yards on the other side( and don't tell me neighbors either) and the head was in perfect shape. Their Cut on contact worked on 5/8 inch fencing board so I'm impressed.

I tried the regular broadheads out and they fly okay by me. The rubber o-ring that it is on the bottom cuts pretty easy. I went to the local hardware and bought some o-rings and they work great.