Ceewonthurdees, absolutely love your forum callsign, very creative
I flew C-130E's in the 80's. Probably the best Additional Duty I got was Flight Safety Officer/Aircraft Accident Investigator.
Watch out for small units. I upgraded to IP but never logged any IP time because I was in a 1 aircraft unit with a Special Ops C-130 we couldn't use for proficiency flying. Had to swipe plain cargo C-130's for that whenever one was doing a RON. Only 5 line pilots plus Ops Officer and CO who flew part time. All Chiefs, no Indians so no one to instruct and very limited proficiency flying.
As others have said, get IP upgrade done and strive for Stan-Eval. Avoid non-flying staff tours like the plague.
If you get drafted for UPT Instructor try to get the T-1. It's over 12,500lbs (at least the Hawker 400 is) and you'll get lots of IP/PIC time.
And be careful with your obligation. I took tuition assistance for my Master's and failed to do the math, wound up with an extra 6 months of active duty. That was some very expensive tuition assistance.