You probably won't be burning through barrels too fast in CA.
Ain't that da truth!
I personally don't have any experience with locking devices since Raddlocks/Bullet Buttons were outlawed. I keep my guns featureless to avoid registrations and such.
If you haven't seen the armaglock, you may wanna take a look. It looks really simple, yet elegant, and their demo vid's show them clearing jams in a second, as well as doing mag changes.
I get the reg thing. I'm not gonna build my first one, so looking for OTC...
I did a little sanding to free float the barrel and it fit great. I have both stocks, can't say I prefer one over the other. They are both nice stocks, the thumbhole allows you to get a really good grip on the rifle.
I'm in. Now I just have to find someone with RA 22-250 in stock...