When standing and bending your ankle to get your knee in front of your toe is your heel staying down on the floor? You don't mention this and you would test two different things. One test would be flexion of the foot which is immaterial in the boot and the other is flexion of the ankle which is relevant.
Even with the heel staying on the ground this is more flexion than the foward lean of a boot but the real issue is enough flexion for functional skiing while maintaining balance despite the forward lean of the boot.
My point of the stretching is partly the benefits it would provide well beyond skiing but more the case of avoiding much more serious problems with proper biomechanic alignment/muscle balance/joint flexion. Whether there is an injury or misalignment I don't think canting which could further exacerbate a problem that MAY have further consequences should be jumped on too early.
It sounds like Boot tech takes a considered approach in this but many may not. Canting can be done fairly easily. Knowing when and where to cant may take far more knowledge than is often applied.
Originally Posted by learn2turn
What would you consider limited dorsaflexion? Reason I ask is a broke my ankle a few years ago and now have less dorsiflexion on my right side. It's not from tight gast/sol, it's from scar tissue built up around the ankle. I can still bend my ankle such that when standing, I can get my knee 1-2" in front of my toe. Wouldn't that be way more than any forward lean of a boot?