I do about half the time. I don't think it's as dangerous as skiing alone in the BC. The fact that you are on a trail and there is not several feet of snow on the ground, and you won't die of exposure over night are the big difference to me.
Do you remember the guy I'm talking about in Stowe who got in the accident? There was a fund raiser party for him I believe at where they held the annual barn dance. Was around 2001