It's a full session but i wouldn't say its going to be crowded. The first session will be Lead-Follow for
everyone, which will really help newcomers understand the racing line and find flag stations. I believe the second session may also be lead-follow for the newer people/those that want more help refining their line and also have point-by passing for others (the lead-follow people would start last).
Once we get some times set and can start people based on time, the traffic is really not much of an issue at all. I was in a run group with 20+ people at Buttonwillow the other weekend and when i started first i encountered
zero traffic (since they're all behind you!). Also if we're just good about doing point-by's, everyone will have a blast!
You might be a bit....paranoid
Sorry, couldn't resist with the username.