In reply to Alex Riley:
My MB Pro's have been a little damp from day one. I find even on dry winter days they are damp and wet days out like in thaw conditions they can get a bit squelchy.
I also find I get quite cold feet in them.
However they are the best fitting winter boots for my oddly shaped feet and they climb well. So for now I'm sticking with them. But if you do find a solution please relay your findings.