I skinned/snowboarded the carriage road yesterday. I was surprised to see close to 20 skiers and snowboarders on their way down, apparently there was a Moosilauke bday ski party. It was skinnable to the summit with some open water stepovers in the first mile. I kept my skins on from the summit to the rock gate just below the Glencliff junction. I wouldn't say it was advisable as it was very boney with lots of rocks along the trail above treeline. The coverage is pretty decent in the trees on the upper mountain. It gets thinner and thinner below the Snapper--I definitely hit a few hidden rocks. I carried my board from Camp Misery Memorial Bridge to the car as it was too thin for my liking with the open hopovers. So in all I'd say it's definitely skiable with good snow up high. One more decent little storm should make it pretty solid.
Pat