Well I will say this. I got a viper and I got a Treewalker pro mag (the one without the shooting rail, I think that is the model). I am 6 feet and 200 pounds and with my cold weather clothes, you about have to cut me out of the viper it is so tight. The Treewalker has the extra leg room out from the tree and makes a huge difference. I take a fold up cushion with me and I can sit in it just as long as any time in a summit.

My viper does get used. I take it and lock it to a tree and leave it. In the past 3 years I have used my viper twice. I will let you guess which one I grab when I go. To me, if I were buying a stand, Treewalker would be my choice hands down.