With only 41 drivers, I have 17 each in Red and Orange and 7 in Orange. My plan at this point, barring any objections or huge last minute enrollments, is to allow Red and Orange drivers to drive in either run group under those groups rules. Red allows passing in T2 and 8, in addition to straights.
So if for some reason, 2.5 hours on Saturday and 100 minutes on Sunday is not enough for you, you can drive more. This also allows a little more flexibility in driving when you are ready.
Weather looks good. 70s...at night. Bring shade, sunscreen, cool suit (the best $300 you'll ever spend in this sport), and drinks.
Bring a friend!