Pup and I checked out the grooming, which did head thru the woodlot but only made it 9/10 of the way - ongoing tranny issues on the tractor ended its day. (Met the driver, lives 1/4 mile from our home, coming out after trying a fix, will attempt tomorrow to get enough repair to limp it out of the woods.) The sled scraped some moss off the rocks and plowed some frozen mud, but left a platform that won't take as much snow to make a real trail.