The influence of boot flex/ankle range of motion on skiing is something that is still a complete mystery to me. It's one of the variables that I haven't really played around with in the past, mostly because it's not possible to demo higher end boots and experiment with the flexes. Most of my focus on the past couple seasons has been working on finding a canting setup that works with my body alignment. I'm pretty happy with the current setup, but am still concerned I'm not in the best flex boot for my frame and based on some on-snow feelings. I just don't know anything else and I'm looking for some feedback about whether or not it's worth trying a second setup.
On snow observations:
My current boot does seem rather stiff at times to me when it's < 20F. Sometimes it gets to the point where I can't flex the boot at all at these temps using my ankles alone - I need to assist with some body weight to push on the tongue. I also feel like I have trouble pulling the inside ski back in a carved turn to get balanced over my center of mass and end up compensating with the other joints. To outsiders it appears like I'm slightly in backseat or that I have too much inside ski tip lead.
Boot: Lange RS 130
Foot Size: 10.5/11
Dorsiflexion: I think ~28 degrees. I measured this sitting so my thighs were parallel to the ground and my lower leg is perpendicular. I lifted my toes off the ground while keeping the heel down and measured the height off my big toe from the ground at ~5 inches.
1) Did I measure my dorsiflexion correctly and where am I on the scale in terms of range of motion?
2) What type of Lange flex would you put me in without seeing me ski?
3) What benefits could my skiing see if I were to unlock more of my ankle flex by moving into a softer boot?
4) What are the negatives of moving to a softer boot? Would I be crushing the tongue of the boot or could I hyper-extend my achilles?
5) Could a boot that's too stiff coupled w/ a neutral stance like Lange actually result in loss of pressure on the front of the ski?