Hey Blacktail,
I just found this post. My opinions on hunting heads are: A sharp stone point mounted on a perfectly-flying arrow that is delivered accurately to the vitals is most important. I've hunted with different point designs, from triangular with no notches to side and corner notched points. Design really doesn't seem to matter...it's a sharp point that is accurately placed that brings home the bacon. Also, arrow flight is VERY important too...perfect flight greatly increases penetration over an arrow that fishtails in flight. Bow weight doesn't seem to matter that much, as I have shot lightweight reed arrows with small stone points completely thru a freshly killed deer with my little 40-lb osage bow. If you can put that arrow exactly where you want it, then you can use surprisingly lightweight bows and still be successful, and I think that's one reason why most Native American bows I've seen were not bulky, thick, or strong. Instead they were sleek, elegant, and small, and I estimate they didn't pull over 45 or 50 lbs.
I do prefer a stone point that is around 1/4 to 3/8 of an inch wider than the largest part of the shaft so it will provide enough clearance for the shaft to slide thru the wound. But I certainly don't tip my arrows with stone points that are 3/4 of an inch wide. Most of my hunting points are around 5/8 inch wide and have proved very deadly as long as I put them where I want. And beauty doesn't have anything to do with effectiveness. I shot a rabbit last year with a flat, thin point that had no flake scars except for just around the edges. It only ran 10 yards and crashed. I shot a squirrel 3 years ago with a small stemmed point that was ugly as sin...the point went thru the squirrel, hit the branch behind it, and broke the tip off. The squirrel had nowhere to go and tried to find a way out of the tree, but he couldn't go far with the arrow thru its chest. It fell outta the tree a second or two later. I killed my doe last year with a long, kinda sleek side notched point...but it certainly wasn't pretty. She only ran 50 yards and collapsed.