I guess I should clarify what I was trying to say to Noranrand.
If his skills/style are adequate for the I-group, then it should only take ONE session to get a bump to the I-group from the B-group. The idea of getting evaluated is to be the very first bike out behind the first CR. This automatically lets them know you're wanting to get evaluated.
The trick is getting your ass ready, and up to the staging lanes ahead of everyone else. I tried this at Barber last weekend hoping to get evaluated for the A-group, but even though I showed up at the first call, I was already behind two other riders. I just went out, kept up with them, and then worked on my skills the last few laps at a 90% pace. I should have gone straight to the CR Captain and requested an evaluation earlier, but I waited too long in the day and it rained a bit, so I wasn't going to push it after that.
The point is...IF you're ready, it only takes one session, even if you're new. There have been people go from B -> I -> A, all in one day.
I may have read too much into his post about having to go through a class most of the day, and it cutting into the riding time. If he, or any other new person, has been to 6 track days, but has only had the equivelent of 2-3 days of track time, possibly at a slower pace than the front of B-group, then I will always be cautious recommending a signup straight into the I-group. I guess it's all how you interpret his post.