I just remembered, on my 2nd last ride on 1/27 in northern WI, Vilas Cty., I followed a group of "snow terrorists - (six) down trail 13, just east of Lando.
These guys had to get around me, so I let them go at the intersection of 6/13. Actually, they were right on my tail and I didn't know it when I stopped to read one of those road side trail maps - so close that when I started back down the trail, the leader almost clipped me.
When I followed these guys for the next 5 -6 miles, trust me, they were using the WHOLE trail, right, left, it didn't matter. And EVERY corner was whiped out and scraped clean by their track spins.
You wonder why trails don't hold a groom? Your average ricky rocket racer doesn't care what he leaves behind him. My guess is, there's 40% or more of the guys out there with this attitude.
OK -off soap box.