I've just got back from a ski trip where on one of the days I rented the European equivalent of the Rossignol CX80 (i.e, same ski, just different name and graphics). Although I got on well with these last year in the softer snow, this time I just didn't do well with them at all, at least not in the 170cm length (I started with 165cm ones which felt OK, and then pointlessly changed to Dynastar Speed Courses, and then changed again to the Rossis again, this time in 170cm because all the 165cm ones were out). I was skiing on much harder, icier snow than last year, which may have made a difference, but I had difficulty feeling centred over the skis this time, finding their sweet spot, and I was also feeling it in my quads, which is unusual.
I'm just wondering whether these skis are just too stiff for my meagre weight - I'm 5'11" but a rather skinny 142lb (I'm built that way, but I also do a lot of running). I'm a reasonably advanced skier by British holiday skier standards - e.g.., I do all the runs in most resorts in reasonable style, and largely carve rather than skid my turns. I have a pretty vigorous weight transfer, but I am perhaps just too light to bend these skis even so?
This has led me to wondering whether instead of this kind of ski I should perhaps be renting more intermediate level ones, on the basis that I am unlikely to run into the performance limits of these (in terms of of loss of edge grip, etc) in the way a heavier skier would. Or are they generally designed much for a twist-and-skid style of skiing which I don't (usually) do?