David Lenzwrote a review of Salomon MTN Lab Ski Boot - Men's on January 17, 2017
Familiarity: I've used it once or twice and have initial impressions
Went on my first ski tour with this boot and after my first upgrade in about a decade and was mind blown by all the features. The walk mode + ergonomic buckles are easy to travel in and they are fantastic for flat sections where you need to quickly change between downhill and walking modes. Even while breaking in the boot on my first trek up, it was comfortable on both feet ( I have slightly narrower feet than AVG.)
I was riding on loaned out skis that were too big for me and I have to say that they were still easy to push uphill and skied fantastically on the way down thanks to these boots. The stiffness of the boot came in really big for controlling the skis through some tight spaced Aspen forest skiing. I didn't find the boots overly stiff, since I am used to the opposite. I would estimate on first impression that the stiffness value may be overrated in the 120 flex value?
Will update upon additional field research!