-Shadow-Thanks everyone for the input.
"But make sure you go get the shell checked with a fitter to confirm they will work first"
You mean checked with my foot shape? If I'm going with the same brand and size as my current boots (which work great), is there still any potential issue there?
Its not the same boot though. Allthough the xpro came from the impact its an all new shell and the qst is differnt agin from the xpro. You need to at the very least ensure the shell is still going to work. Remember too that your foot may well have changed over the years. Your arch may have droped more for example and this is also the reason new footbeds may be a good idea. Take your footbeds with you when you go get shell checked and have the fitter asses wether they could do with replacing
Walk modes are getting good these days. In some boots you barley lose any downhill performance compared to a locked cuff. I skied the new K2 pinnacle pro all last season from everything to bc to park and never found any majour issues. If you plan on touring go walk mode.