The first bull I shot with my compound was with this head. It was probably a bad shot as he was quartering to and moving, however I took it. The arrow went in kinda back ang got one lung, it then went directly into the far side hip joint. The bull walked thirty yards and was probably dead before he hit the ground. The head had completely exploded the hip joint and severed the femoral artery. Although it was dulled there was no other damage to the head. That being sad I think you could use a vpa and achieve greater durability.