These boot conversations are always going to go in circles until manufacturers become motivated to design solutions for modularity and fitment options. (Not just pho fitment flexibility and a lineup of differing models with unclear and undisclosed fitment objectives.)
For my
wide forefoot and skinny ankle I'm having 85% success using a Mach1 130
HV and the following mods:
- stock liner with tongue moved (velcro) 1.5cm backward. I also ground the material thin around the 5th toe and 5th met.
- 4mm incompressible bootboard shim plus a 5mm semi-compressible foam shim. (under liners)
- custom insole (duh)
- forward punch at big toes
- many punches to gain space for 4th toe, 5th toe (pinky), and 5th met. All of them 50% successful.
- circular inside-ankle cutouts glued to exterior of both liners using 5mm foam. Approx 6" diameter with 1.5" center hole removed for ankle bone protrusion.
- floating 2x3" foam piece (5mm) that I wedge on top of the tongue after putting the boot on, pushing it all way down to occupy space at the bottom of the shin. I might sculpt and glue these next week.
The plastic seems compliant to punching at first, but has proven very resistant to permanently yielding additional width a the toes and met-last.
And by 85% success, what I mean is a very performance fit (0.5 finger shell fit) with immediate ankle response, minimal heel-lift, zero cuff slop, that I can tolerate for 3+ hours, opening the buckles on lifts. If I'm going to be in boots for 6+ hours or if its below -15C then I'll swap the 4mm bootboard spacer for a 2mm one, which is a massive change in performance (less) and comfort (more).
Boot fit is 25% of ski skill

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