RE: A ? for those using mechanical heads.
No way!!! I try to bury my pin so that arrow is going through the boiler room just as I would using any broadhead. The fact that I have a head that has a 2" cut does not change my shot selection AT ALL. It's nice to know that if I mess up that broadhead my save my butt and make up for my error, but I certainly do not count on that happening.
Your buddy needs a serious talking too. That is not the intent of those or any broadheads and he is going to wound a lot of deer with that thinking.