Went and tried FAT biking (this referes to the tires being fat... not me!) this morning.
Good news... my friend knew what she was doing so taught me a few tricks.
Bad news... The trails were just way too soft (not compacted enough), so it made for very difficult conditions.
Chatting with people in the parking lot, even lots of regulars either turned around once they started on the trails, or decided to just go snowshoeing instead.
That being said, I still had a blast and look forward to trying it again when conditions are optimal.