I have done it several times and have stayed at the lean tos once while we skied it 3 days straight. I like to do it early in the season so you can ski ALL the way down to Pinkham Notch where you park your car. If the trail is in good shape and you are in good shape your can reach the base of the ravine (HoJos AMC cabin) in about 90 minutes. Change out of your damp clothes and eat something here and enjoy the view. You can choose to hike either up Hillman's Highway (on your left) a longer narrow run that I prefer... or hike up into the ravine bowl and choose a face to hike up... left gully, left headwall, center headwall, right headway, right gully..... You need a frame pack to lash your skis/board/boots to on the hike up to HoJos (AMC hut @ base of ravine) Once you start to hike up to ski you change into your ski boots and put your skis on your shoulder. Briung plenty of water and food as you will be burning many calories with all your hiking...
make sure you pick a good weather day... the clouds roll in and can change from decent to white out very quickly... bring a lot of layers of synthetic clothing
http://www.outdoors.org/recreation/t...n-overview.cfm
http://www.mountwashingtonavalanchecenter.org/
It can be amazing up there on a good day... it is a blast