JJ,
I knew you weren't serious, that's why I called you on it. All in fun. You obviously have more than enough actual experience to know what works, and what doesn't. But what I like, is the fact you are always trying learn and make it work better.
If you want to learn more, I would suggest reading all the articles done by a gentleman with the name Dr. Ed Ashby. He has studied this exclusivley for many years. Much of it on African game.
He continues to study this issue to this day. His findings are enlightening.
The problem is the list of variables:
1. Different species and individual variations within that species and shot presentation/placement.
2. Is the animal moving at the shot.
3. Bow being used. Obviously higher KE = more penetration
4 Arrow material being used. Faster recovery, less energy lost at impact.
5 Shaft size being used. Smaller diameter pentrates better.
6. Weight of arrow. Heavier will pentrate better.
7. Broadhead design. narrower has more of a mechanical advantage. Easier to penetrate. COC head is easier to push through hide vs tipped or mechanicals.
8 Tuning/arrow flight of the arrow. Perfect arrow flight is probably the most important.
9 Distance of the shot impacts KE delivered.
There are lots of variables, many combinations will work.
But these combinations can be maximized for optimum performance.
