I tried them on a 11km ride and 1 km vertical and they were perfect. Much better than my BD half kicker skins. Great grip going up and good glide going down.
I have been using my pair for two season and around 100 days. It is amazing that they don't pick up any dog hair or dirt when I can be pretty hard on skins. I would say they fall off about twice as much as other skins which for me is pretty little. If I used to lose a Dynafit Skin 3-4 times a season these probably come off 6-8 which seems worth it for the glue that used to ball up. I also noticed some fraying over the days and had to clean them up. Other than that they have been incredible and glide super well.