It turns out it was a good thing I went, as Tim was very low on volunteers. I ended up running one of the testing rooms, helping score tests, and doing general information and student herding.
There were some very very bright kids at that contest and some very good scores (way better than I could do in that time constraint!). It's always impressive to see how well students do at a top contest like this.
Part of the test was deciding who goes to ARML from the Bay Area team. I was offered a chance to come along as a helper, and I might just do it if it works out with respect to home and family commitments.
I also was able to poke around Stanford a bit, which was nice as I hadn't seen the alma mater in a while. I also visited with some college friends who I hadn't seen in a few months.
But now, to bed. It's been a looong day. Good, but long.