Now that it's less than 48 hours from my big race of the winter, I decided to do some online research on tapering for ski marathons! Not only did I find something on tapering, I found a whole training schedule. I'm impressed, but wish I had found it in December. Never too late to start the schedule though. Let's see, 2 days before the race it says "2 x 5 min intervals at race pace, 1 hour total", so I went to Riverside to ski. I forgot what pace the intervals were supposed to be and did my 2 x 5 min a little above race pace.
And as far as a slippery slope of a 50K ski marathon sliding me to a 50K, 50M or 100M trail race, I think the only slope I'm on is to Canada.