Brother, all I can tell you is good luck. The SoCal scene, geographically speaking, is spread all over LA, SF valley, and Riverside county. On top of that, no one except for me and slayer (sometimes tyrant) really get together to support injustice/mk9 anymore.
If you don't mind me saying, I'd recommend coming to super arcade (located in Walnut, CA) on Wednesdays to join us for some intense casual sessions on either mk or injustice as that seems to be a geographically middle ground for the LA county and Riverside guys (aka Me and Slayer).