According to the rep at the St Paul ice show, they haven't made any changes to the pro model of hub shacks in the past several years. I picked one up on Friday. Set it up in my basement and I haven't seen anything standing out that I can complain about. Went up and came down easy with one person, might be different on the ice. If I get the wife's approval I'll be doing an overnight trip this weekend and will post my review of the shack after that!