Notes
Got to Twin Brooks an hour early and ran over 90% of the trails to see what sort of shape they were in. Screw shoes were definitely necessary. Met up with the 5:30 lady monster's group at around 5:40 or so (after running around the fields there for 15 minutes waiting for them) and handed out their screw shoes I'd made earlier today. (They left the shoes with me last Thursday.)
All in all, relatively good conditions. Cold in the fields with the wind but pleasant under the trees. A lot of the trails were sheer ice but the B and C loops and half of the A loop was pretty ideal.