Just a note with my one experience with a Tuffhead. I got a pass through in the bottom half of the heart on a small doe at 14-15 yards. The next day I found the arrow right where the doe was walking when I released. The arrow was stuck a full 5 inches into the dirt in the stoney bank. While it would not shave at that point, it only took several strokes on a medium grit stone and a good honing on leather to get it ready for the quiver. There was no heavy bone impact and apparently not solid rock impact either, but the bank where it landed is very stoney.
A couple months ago I filled a cardboard box with magazines and catalogs to make a broadhead target. It works really well and all it cost was some duct tape. dwcphoto