2strok, the best race would be the Over 40, 250cc. I believe its race Race #10 which also includes Over 50 & 60s, women and minin's. I think the majority of the older crowd have to work on Monday so they tend to tone it down a notch and dont typically stuff you in the corners and such. The novice groups gets about 20+ riders. The only problem is that in race 10 you get all the mini's and some of the slower women riders but if you sign up as novice you should stay ahead of that unless you start to lap them. By that time they are pretty spread out so its not an issue.
Im not sure if Im going out for the weekend yet, but come on out and hookup with us when your there. I usually hang out with Big Al and a buddy but feel free to hang with us when you come out. Ive decided to hang back in the beg class this year because my buddy is racing for the first time. Im hoping to get him to move to Novice before the year is out.