In reply to UKC Gear:
I bought the Pro Guides for use in MRT and they are the best winter boots I have ever owned. I use orthotics and was dubious about the blister free guarantee due to my heel not being fully in the heel cup but I have never had a problem.
The option of widths really appealed to me after having problems with both Scarpa and La Sportiva.
The only question is how long will the mechanism last with grit etc getting into it. So far though, 1 year in, they are still performing. Top boots in my eyes.