I like the clamp design meaning that when it’s used at an angle downstairs the pole can’t spin,there’s never really an issue with extreme poles slipping on top windows but it can be on downstairs windows.
I’ve just got another extreme 22 and you do have to do the clamps up quiet tight to stop this happening on ground floor windows,with this pole I don’t think this would be an issue I nearly got one to try be interested if this is the case.