In reply to Ron Walker:
> ... areas such as over the Col du Lautaret, Vallon Diable and Alpe d'Huez skis can be fun
Essential for the Col du Lautaret, but pretty tricky for the Vallon du Diable - it gets pretty narrow at the exit, skiing that with a full Winter pack is going to be pretty challenging, though I have seen a French couple do it. If there is a lot of snow in the Vallon I would either :
1) not go - it is a notorious avalanche trap in heavy snow, being a steep sided V shaped valley
2) take snowshoes, much easier to tackle with a pack on for most people
I did once ski to the routes in Alpe d'Huez, the problem then became what boots to climb in. We actually carried mountain boots, which were bloody cold (and heavy), then changed back to the ski boots after the route. They were by then also bloody cold, also the mountain boots made the pack even heavier to ski with.
I would now unquestionably climb in ski-touring boots, rather than faff about like that.