Also, there seems to be a portion of drivers that are clearly either, not experianced enough to race in the CTRA system, or just plan bad, I remember there is a certain percentage of the laptime that needs to be adheared to or the driver is kicked, maybe this percentage needs to be looked at, or a percentage of races completed, yellow flags, blue flags or a compalation of all.
I wasn't aware of this but would suggest it should be no less than 106%