My boots are Atomic Hawx 80, and I've had them since the beginning of last season. My first question is about the low flex. I've looked around for this, but wasn't quite happy with the answers I found. I know the numbers are not consistent, and some people seem to prefer a lower flex for certain conditions, like bumps. I ski fairly fast (35 mph), so I've been wondering if the low flex has any disadvantages. On the other hand, when it gets cold (10 F), my boots are very hard to take off, so that makes me not want anything stiffer. I also have fairly limited dorsiflexion (not sure if this applies). How does one choose given these contrasting options?
My second question is about canting/upper cuff adjustment. The boot fitter I saw last couldn't move it at all, but I'm sure it's been moved previously. He was putting a lot of force into it and it barely moved. How does this adjustment work? Is it something you unscrew, move the boot around, then screw back in? Or is it a system that moves the boot one way when screwing in and the other way when screwing out? Is it possible it's screwed in to its limit? Just trying to figure out why it wouldn't move.