Hey man, welcome to the addiction
. I have never personally ridden with STT, but make sure you let them know it is your first day.
Also, check the sticky's on this forum, there is great info there on checklists, what to expect, etc.
You can also check out NESBA and Team Promotion (google it). They both have "first timer" handbooks that should apply to STT. But definitely check out anything specific STT requires, ie bike wiring, coolant do's and don'ts etc.
I would also Youtube the track, just so you can get an idea how it looks "bird's eye".
One warning, you will become addicted to this, and it will cost you a freaking fortune, don't say we didn't tell you ahead of time!
Good luck, you will have a blast, let us know how it goes