As far as meet up time goes, I vote for 5pm at the latest if we're going to get a decent ride in and have a moment to get something to eat (can anyone vouch for the food at the track, is there is any?). Although I am flexible on the time thing, as I don't want anyone to miss out if they can't get there 'till later. Price for parking is news to me, I hadn't thought to look into it. I'm OK with that, but we could always park at a near by trail head - I bet they don't charge for bikes at the track
-Andy