Well - my team is dead and I'm racing for my own bill (and fun! And that's what it's all about for me! See, that's a very ancient attitude...
). And I guess no one wants a declared bad pipsqueak in his team...
Also I don't think that the best-time-idea is good, that will motivate people like me not to race at all. I like to see my name on the scoreboard even if my time was supercrap. 
1. And casual pipsqueaks wont be welcome anymore, because we would spoil the good work of the frequent ones.
2. Another thing - thats very nice everybody saying to just run for fun, but teams still wanna strong times to win, so... no place for middle class pipsqueaks too.
CTG?s suggest is good (teams with pipsqueaks class A+B+C), problem number 2 solve, but not problem number 1.
It seems like the G-8 competition, elite of the elite (elite meaning not only strong pipsqueaks but whole-season drivers).
Like others said, ZS has the most prestige and professional competition among the stunts comunity, and its nice to put your name together with the top dogs (like CTG and gelato baker

)
well, Im a little busy to explain my opinion properly right now...