I have demoed both the Cham 107 and Cham 107 high mountain in the 184 as alpine skis, and found the HM ski to be very impressive. For the weight savings, very little (if any) performance is lost.
Today I got on my new HM 107s with 22 Designs Axls and found them to be an awesome ski. I have yet to tour with them, but just throwing them into and pulling them out of my roofbox, I can see how much lighter they are than all of my other pairs of skis.
I skied them in some crud, bumps, and on some (poorly groomed) groomers. They hold an edge well, yet the pintail lets the tails easily be released for a speed check, slarve, or pivoty turn.
Though these are quite a bit lighter than the ski I cross-shoped them with (the regular Cham 107), they still aren't a "lightweight" ski in comparison to skis by the likes of Dynafit, for example. This is not an issue as a resort ski, but I have a feeling for touring a bit less weight yet, would be nice.
I will update once I have some more time on the skis.