Every once in a while some things are difficult to find an answer via google, which is why I started this thread. And the Treehouse came through....lots of great answers. Now if anyone ever asks 'whoa, why did your axe bounce out like that', I can actually sound smart.
To derail my own thread, who wears safety glasses when splitting wood? After getting hit in the face with a chunk, I always do now. I've read youtube comments from people claiming chunks piercing to the bone.