HSC-85 I think. The spawn of HCS-5 and HC-85.
I was under the impression that OAMCM was coming to an East Coast sqadron near you sooner than Block III (first block IIIs to the west coast sometime soon as already mentioned), but I've been out of the homeguard loop for awhile.
You're right. HSC-85 is fully up and running at North Island. As for OAMCM, they keep holding it over our heads (i.e. it's still listed as "future missions") In fact, block IIs have the extra hydraulic pump for it already. Right now it just sits on top of the aircraft not attached to anything (but they still service it for some reason). Last rumors we've gotten is that HSC-25 (Guam) should be ready for the first Block III det sometime around November.
As far as the original topic of the thread...I know a few 53 pilots that are instructors at the 60S FRS right now. They seem to like both just fine. The main disadvantage to the 53s as far as I can tell, is that you will be in Norfolk and that's it. Plus, you may be forced to change aircraft at some future date for the health of your career. Two squadrons of 53s doesn't leave too much room at the top.