Upon further review.....Let's take the typical 1.5 miler--Vegas, for example, and work through the sessions......1) Session 1: You hit the track early or wait for the bottom feeders to clean it up? Either way, I imagine that we will have some time with the track empty while tires are saved. 2) Session 2: Laps are on the tires, and the track is clean....Go early to take advantage of the cool track? ....back out only if needed?...3) Session 3: Go early when the track is coolest? ...and then some questions...1) How will timing work? Does the lap have to be finished by the end of the session or just take green? 2) Will war wagons be necessary on pit lane given the potential for stops, adjustments, etc.? ....Would this not render pits hot, and thus your traditional pit pass ineffective? 3) They will line cars up according to random draw to start, and then by time in Sessions 2 and 3. Do you have to go out, or can you stay on pit road?