Howdy. I realize this might be better suited for the PSYOP section of the message board, but it looked pretty dead, so I figured here I might get some more responses.
I'm pretty joblocked on 37F (I know, being joblocked is a bad thing), and I was curious as to how often during the year it is made available. Looking at possible MOS's and their shipping dates, I couldn't find any immediate openings for classes with PSYOPS.
I'm not sure if this makes a difference, but for the record, I would be going active duty.
Don't worry about when the class starts, thats the guy at MEPS problem. Just tell him what you want, and he will figure out if you can get it and how to get it. If thats the MOS you want, stand your ground (assuming that you qualify for it).