El Tour is a hybird. It's a timed event with several levels: Plantinum, Gold, Silver, Bronze) and 5,000+ riders.To get plantinum on 109 mile course, your ET must be under 6 Hours,. My understanding is that the Platnium and Gold levels have the "racers" and the "wannabees" You have to declare your "metal" before hand. I debating between the Silver and The Gold.
BikeMad, I think you'll be best at El Tour as a Silver, since from talking to folks who have done it, it's more laid back. Still , with that many folks, knowing how to ride in a pack would be handy