Exactly. >90mm is the ski most likely to rise up and plane/float on the surface of dreaded breakable crust. If breaking through is unavoidable, it likely remains the most turnable of skis. This is the thing with a short wide ski - add a little side-cut and some rocker/round flex, and all of a sudden, all other things being equal, the ski rises and planes more readily and that allows for an often amazing pivoting effect, where very little edging/arcing of the ski is necessary. It becomes less linear and more rotational on the (downhill) horizontal plane. It’s like sking on a “magic saucer”:Montana St Alum wrote: ↑Mon Jan 03, 2022 3:07 pm…Shorten up for agility and increase width to the extent that you need the surface area for float.
At >90mm underfoot, I've found that sort of width makes breakable crust pretty easy,..
Uncannily similar are short, wide, rockered and flat bottomed hulls that allow whitewater kayaks to plane and spin, with very little edging, while surfing down a wave too:
Some (maybe greatgt) will say that a longer, narrower ski cuts through crust and gives the stability of a strongly linear flow, but the turning can only really be very long arcs (which of course can be fun in its own way!), but isn’t what I’d call agile.