In reply to sam1971:
>
> Ignoring the obvious fact that ski, binding and boot choice are hugely personal the Dynafit attachment system (two small clips into side holes in the boot) naturally introduces a bit of movement that you don't get with a "normal" alpine or Fritschi binding where there is a much larger contact point round, and down onto, the front of the boot to reduce movement.
Not true.
Dynafits are some of the most torsionally rigid bindings there are; certainly more rigid than Fritschis (I ski Fritschis, btw).
> I would say ski length is a different subject. The advance in ski materials and build techniques has removed the benefit of a longer ski for touring. You get the stiffness and performance from a 170cm ski that required a 190+ cm in the recent past plus everything is then easier with a shorter/lighter ski.
Kind of. Some of the benefits of length have been negated by stiffer materials etc, but length is still a contributing factor to surface area. For equal underfoot width, the heavier you are, the longer ski you need if you intend to ski powder.
> Movement skis rock. Although currently I'm on Volkl Amaruq 177cm which also rock, feel like I can ski mach 7 any conditions.
Volkl Mantra, 184cm, Fritschi freeride+