I feel I'm "average" on starts. I do try to stay glued on the bumper in front of me, but I don't play games with guessing flags and all that crap. I wood it when I see green or I've detected that everyone (not just one car) else is nailing it too. And I damn sure won't put two off in the grass to pass no matter how much faster I am than the folks in front of me. I'll use my brakes to check up, not the car in front of me, if I do need to choke up on a start.

I'm protective on the first few corners and would rather give ground than bend metal. Seems to me the risk of bending metal and getting punted off track is worth less than giving up a position. Especially if the give is to a car out of class. Sometimes that give screws me if I get say a IT7 car between me and another ITS car, but I still feel it better than getting a punt.

Etiquette is a learned behavior and some people are flat out not going to learn it. Those folks you simply remember and make mental notes when having a look at the grid sheets.