I think after a while with NO back support to lean against, it will grow old, as will NO padding! they used to sell something called a tree saddle, that was like a climbing harness, you fixed to a tree and then sat in, and then you could spin about the tree in the harness, to get from front to back of tree in case a deer or?? came in from that way>

That I have heard wasn't the best idea on LONG sits, due to blood flow issue's of hanging the harness into your legs over time, blood flow was slowed and you ran into circulation issue's or just got COLD faster from it!

but hunting is always a personal thing, do what you makes YOU happy,just be safe!