I bought them week ago Saturday morning. as soon I got home the vomiting began. So no much experience yet. I tried one skin ski pair last winter. Those were not stiff enough even if stated kg figures were correct. So I tried made sure they picked me stiff enough skis. I was afraid of them thinking I am a novice skier they sell skis most to, so I explained carefully there does not need to be any grip when walking hills up, I always jump on them carefully and I never do easy sessions with them, so no skis for leisure skiing with family but tools for a old but fit endurance athlete who has skied classic all his life. Just to make sure they know to pick right kind of skis. When we finally picked a pair we though should be good I asked about getting even a tad more stiff than these, the guy said they sure have some but he refused to sell any stiffer - he said I would never get any proper grip out of them and even these hay not work I don'k kick properly. There is only 2 or three shops in Helsinki with enough know how to sell skis, this was bought from one of them.
This pair is a lot stiffer than my old wax-able classic skis. Getting proper skin skis is a bit tricky, not that easy to get stiffness right, if it is not stiff enough one cant properly ski with them and if it is too stiff there is no grip. Plus one needs right kind of kick technique (and fitness).
I´ve only tried the skis I bought at the end of last winter three or four times in very different conditions. Hard to give a good verdict yet but at least the grip seems fine but I´ve had a feeling that the glide may be a bit slow. Could also do with a better wax job I guess...