From one who has been there
I did tweets then went to Corpus....awesome training! I flew 130s for four years and loved it. I wanted to go back to Corpus and instruct but as luck would have it there were no slots available so I got T-1s instead. That was a MAJOR learning curve. The Rockwell-Collins FMS is NOTHING like SCNS from the 130. I am actually lucky that I got T-1s so when I do go civilian I won't be fightning the "box". My advice is for you to do what my reserve 130 buddy did. Go to your unit ...fly your a$$ off and upgrade to AC as quickly as possible and get your 1,000 hrs of PIC as an AC in the 130 then look for a civilian job. My buddy is now flying for FEDEX while I'm still waiting for my commitment to Uncle Sam to end! I wouldn't even bother with a regional unless your unit isn't willing to fly you enough to upgrade in a timely manner.
My 2 cents
T-1