We're close on the Mt. Tam Hillclimb. Remember: this year, we have to cap registration at 450 riders, regardless of category. That means that, while you may see that there are still spaces in your category, you may not actually be able to race.
For example, we currently have very few Cat 3s registered, and you may think that you can show up on site and register. That is a slightly worse idea than going out on a drinking binge the Thursday before the Twilight (I think I was still, technically, drunk, during the first few laps).
So...if you are thinking about racing, please go now and reserve your spot. Feel free to ask questions.