Not to put too fine a point on this, but as I understood Metacomet's question - he's planning on descending it, not ascending it.
You may recall the death of a woman who, along with her husband, hunkered down at the junction of the Skook and the Garfield Ridge Trail several years ago for two or three days, after being caught in a storm. The point being - finding the upper part of the Skook when it isn't broken out is not a sure thing.
For the above reason, and my own experience with it - unless I was certain it was broken-out, I personally would not use it as a descent route, especially if I was solo, which I assume Metacomet will be. It's just too long to backtrack over N. Lafayette and then Lafayette, or even worse - back to Garfield.
And, as always - YMMV. To each his own. Choose your own path. Blah, blah, blah.