Here's an old post of Huggy's from Flight Info (circa 2005):
Everyone gets a basic checkout before they start U-2 training. It consists of instrument training and contact (VFR patterns, emergency patterns/landings, aerobatics, flight characteristics, traffic pattern stalls, etc...). Once checked out, you can go on cross-countries to improve skills, work on various nav events, etc... The cross-countries leave on Friday and return Monday. We can go to most any airfield that has a gov't contract, tower, and 8000 feet. Most pilots get a basic low-level checkout, which allows you to fly VFR point-to-point at 1000', or to fly on a Military Training Route at up to 420 KIAS at 500' (actually, we have restricted ourselves to 1000' AGL).
Finally, you can get a formation checkout. This is difficult, since the average line pilot is only home for 2-3 months, and there is a lot to do during that time. Finding the time to work hard on the formation training can be tough. If you have formation time from a previous aircraft, that helps a lot.
About half the pilots here didn't fly the T-38 in UPT, so when they come back from a 70 day TDY, they just like to focus on getting their single-ship skills honed back to the way they were before they left.
As a T-38 IP, it's a great deal. I get to fly the full spectrum, and a great deal of two- and four-ship formations. Our depot is at Holloman AFB, so we go back and forth to there to pick up jets that have been overhauled or painted.
Does that cover your ??? If not, drop me a follow up.