This Could be the boot.
I could tell this boot has alot going for it the minute I went to put it on. There's alot of attention to detail in the lacing system and especially the liner. With the Removable stiffeners taken out, I'd say the boot is pretty stiff, like a 6 to stiff (8) with them in. The heel hold down is phenomenal. I tried them on, and they're at least a half a size too big, so I couldn't get them to tighten enough. My heel was lifting, but then I threw them in my bindings and it seemed like the ankle strap pushed my heel into the heelcup, and it was locked in tight, way better than my current boot which fits me. I'm going to send these back and probably try out the celsius boot because I'm curious, but I wouldn't be surprised if I went back to this boot. They set the bar pretty high.