Hanulec used to run a 24 hour race at his track. That has it's own set of problems.
Yea, I know, I don't race very often. I don't care.
Qual points sucks.
Shorter qualifiers, and longer mains. Not triple A's
The problem with handout motors is brushless motors are way more expensive than their brushed counterparts. And at a big race you would need a quality (and more expensive) motor. Cheap motors are cheap for a reason.
I like the idea of split format race day. 1/12 in the morning, TC in the afternoon. You can choose which part of the day you want to run, and if you're running 2 classes, you're working on one at a time.
And one silly question has anyone even attempted to enforce the ROAR rule about max 1c charging?