Matt D - Don't forget, the California regs you're referring to won't be enforced by the BATF. The BATF is federal. They couldn't care less if "assault weapons" are registered per state law. They won't be going door-to-door in Cali. It's the state and local LE who will given the task of enforcing Cali's BS assault weapon registration laws. Sad to say, but in California, the federal gun laws are much more gun-friendly than the state's laws.
As much as I am not a fan of the BATF, we have to put blame where blame belongs. If I was a California resident, I'd be more wary of the CHP, LAPD, San Fran PD, San Diego PD, LA County SD, etc. than I would of the BATF.
Aside from that, I'm glad to see only 27,000 AWs have been registered.