A&C, I have not seen SoCal around here for a while. This thread is from 2010...
I would not know the ultimate answer to your question though. On the one hand, if you've never been vetted by the TSA they might want you to go through their process. On the other hand, you're not going for an initial airmens certificate, nor for a type rating of a large aircraft. So you would not fall into one of the classes the TSA has defined. You might want to contact the TSA about this directly.