Funny that you say that, because when I originally typed the question, I just said "Guard Rescue unit", but I changed to "Guard AFSOC" to be a little more general. I had only heard of this happening with HC-130s, but I wasn't sure if the possibility existed for other SOF aircraft.
That being said, the question still stands then. If you go to a Guard Rescue unit, after your tour is up, can you go to an AD slick unit, or would you pretty much have to/be expected to go to an AD HC-130 unit (DM and Moody are the only places, right?)