Confidence really builds as the day goes on. On the first couple of sessions I was really being on the safe side- cutting the throttle early before the corners, not getting off the side of the saddle, etc. But doing lap after lap and seeing the same corners really helps. By the last couple of sessions the shifting was truly automatic- 1 upshift here, double downshift next, etc.
This particular school
http://www.fishtailridingschool.com/ is a very safe environment. Beginners (Jen's group) and intermediate (mine) are led by an instructor- 5 or 6 riders per instructor and each follows directly behind the instructor for one lap, then drops to the back. For the first few sessions there aren't any riders on their own. As you demonstrate that you are capable the instructor then follows you (VERY nervous to have him behind you) and for 2 or 3 final sessions you circulate on your own.
There is passing, but always on the outside.
You never look backwards
Left hand up if you are slowing or heading into the pit (no working lights)
I don't know exact speeds (they don't want you distracted so the speedo is taped over) but I think that I was hitting around 100 or so at the end of the straight- then one downshift, light on the brakes and hard over into the lefthander, knee nearly skimming the pavement. I did get most braking zones set but had a few OMMYGOD moments here and there when I would feel like I overcooked the corner. The sheer repetition makes you look at the little things that the instructor wants you to work on.
By the end I was coming out of one particular corner (you are rolling on the gas as you hit the apex) and had the bike drifting towards the outer edge of the track which was up over a small rise so I couldn't actually see where it was. If you can make it out, it is the hard right, turns 3 & 4
I will definitely do at least one or two more this year and I am looking for a trackday bike. 600-900cc or so should do it. The Monster was GREAT to ride- certainly fast but the thought of wadding up Johnnie's ride was in the back of my mind.
FUN.