Tonight was the first group mountain bike ride of the season, and whooooo I can say for sure that all my winter exercising has paid off. I feel fantastic. (Might not be able to use the stairs tomorrow, though.) We got about 6.5 miles in before dark and I even set some PRs, which doesn't always happen on the group rides - it really depends on who's leading and where we stop to breathe.
It was cold, so we didn't stay for post-ride beers. Maybe next week!