R/C road course! Any suggestions? Ideas? Comments?

[Sircnay]

So I'm currently planning an R/C Grand Prix with one of the local Speed Shops/Import stuff to buy shops that is really big in Fresno. Well I'm doing all of the planning, and just whoring his name. But anyway, I've been making some track plans, and here's one that I made that I really like.

The event is going to be awesome. There's goign to be the standard classes that everyone can apply for and there's going to also be a drifting class (because that's a big thing with the R/C folks I guess), and at the end will be this big all out free-for-all. Basically if you think you're a badass you'll sign up for it and test yourself against whatever else people brought. So that last race should be pretty badass.

Anyway, here's the "blueprint" of the course. Any ideas, suggestions?