I have a set of Kumho Solus KH16's and they seem to do fairly well. The grip is decent, but the treadware is great, so far. They are relatively inexpensive as well (around $72/tire). It does really well in the rain and snow. I don't know if you will have to worry about snow in CA as much as I do, but it's worth noting. Proteges seem to do okay in the snow, but if you see any kind of serious snow, you need a set of snow tires. If you are looking for performance, go with the Ziex or get into a DOT rated racing tire.