Very interesting piece DIYguy. As a traditional bow hunter since the 60's I came to some of the same conclusions regarding broad heads you so clearly show. I remember Paul Brunner back in the 80's or 90's doing the same experiment as you with broad heads going through an elk hide and roughly measuring the force needed for the cutting vs. the trocar type. His experiment was not as exquisite as yours but still demonstrated the dramatic difference.
Thus I have used two-bladed Zwickeys for years to good effect and, yes, experienced some "fish hooked" tips from time to time. Now I use three bladed Magnus Snuffers, COC heads but enforced by the strength of a triangulated tip.
Thanks for the posting.
