Yep, I can take the tractor on 99% of the trails. I have one loop that is hairy for the tractor so I go up the long way (two ways to get to the flat on top). I use the bush hog on the trails to keep them in shape. The dang multiflora that grows in from the side still is a pain in the behind. I"ve about tipped the tractor trying to get at big bunches of multiflora that is off to one side of the trail, so, I've learned to take care of it by hand (with a good set of leather gloves on).
Good idea for a trail and trail maintenance thread. Once I dig up some pics I'll start one (give me a few days, as usual, I'm a bit behind ....and I'm out of town this weekend ....so it will probably be next week before I start that thread.