Speaking from experiance here!!!! I made the plunge into racing WWWAAAAYYYY too soon, I can hold my own line and I am (for the most part) very predictable my my times are slow and I'm nothing but a back marker right now, I wish I would of waited until next season but glad I didn't at the same time. My second trackday I did the race school. So just do what you feel is right like chris said (redkow) bac in the day they would just show up and race now we have trackdays to help prepare for racing, but alos just because your fast at a track day doesn't always mean you will be fast come race day!