There is more bad news. Basically, magazines with a capacity greater than 10 rounds are illegal in CA (if you had them before the ban, you can keep them -- but no transfers, importation, sale or building). In so many words, even with an open gun, you will be in Open 10 division (ha ha) unless you commit a felony. Which leaves Limited 10, Production, Revolver, and IDPA.
Basically, Open and Limited divisions are slowly dying in CA.