Excellent description of camber! This explains the pros and cons of each type very well. I think the double camber is great if you are doing a lot of mileage on fairly gentle terrain. More like traditional XC skiing, but if you are doing mixed terrain probably single camber. I have a ski that has almost no camber with integrated skins which is horrid for doing any downhill gliding unless you are in ungroomed powder. But these skis were made to replace snowshoes and unfortunately if it were me I would have manufactured these at least with a fish scale so they had at least some glide properties on packed terrain. I was told that the fishscale patterns are expensive to manufacture though. The AT skis I think are specialized for just going uphill once and then descending. Which means you put on a skin and don't really need much of a camber. This is a great video for understanding ski technology, thanks for posting this!