Fuel EX 9.8. Sunny, cold - low to mid-20's with fairly brisk SW winds @ 10-12 mph. Brutally cold, dressed for fully cold and was successful. One difference: Used 4 adhesive toe warmers spread around on each foot and used a Merino LS base layer as well as a poly LS base with the HD jacket, + 2 merino base layer gloves and lobster claw overgloves - all worked out great. The whole Western trail network was groomed on Sunday, followed by lots of fat tire bikes to tamp down the trails. Result was a 12 - 18" rideable path through the woods. If you ventured off the packed part it was pretty much guaranteed you were going to slide out or have to put down a foot to recover. I did that numerous times today but never had a true slideout. The hard part was the numerous tight turns in the North Prickly Prairie and off camber sections which were really treacherous in the snow. I saw 15 deer today, they looked a lot furrier than those I saw a few weeks ago. It was cool though because they didn't hear me until I was right on them due to the snow. On three occasions they didn't even bother to move when I rode by them.