I've signed up for my first track day at Thunderhill with Keigwin's. California riders who've raced or done track days there - how is the course ? (I know a Porsche guy who's done a number of track days there in his car and likes it a lot, claims it's safer than Laguna.) How is it on a bike ?
Yet another slab of asphalt I've put a few hundred laps on. T-Hill is a lot of fun. Not super technical and has plenty of run off. It has 2 decent straights so you can get some good speed going and turn 1 is one of the faster turns on the West coast.