Some good points here.
Important points you left out:
How do you address an engine that runs 1.6 under?
What about modified cars with no horsepower ratings?
What about unreasonable after market parts?
What about bogus intake runner numbers for heads up?
What about bogus deck heights?
What about bogus castings?
Why limit to 32 cars? One round takes 64 to 32 without pissing everyone else off...two rounds 128 to 32. Practice is greatly boring and greatly overrated. Just run heads up instead of practice. It would make our points races much more interesting. If you dont care just use it as a practice run. Maybe actually a fan or two might show up!
I am with you on the heads up thing, but on opposite ends of the spectrum on how to do it.