I've flown the T-38 into Oshkosh in '97, '99, and 2002-2010 (save for 2007, when I flew the U-2 in; and 2008 when I flew the U-2 back to Beale... joined up on a Cessna on that one, and made the cover of Flying Magazine, March 2009).
We always get an "IFR slot time". Despite that,... it can get "sporty".
Huggy, if you hadn't given me the gouge on that in 2010, I would have been totally lost.
I flew up initial, got a right break behind a couple of Mustangs, had a near midair in the final turn with a Cessna 177, and had to low approach due to the Mustangs and T-6 on the runway in front of me. What a circus...and completely awesome!