My grandfather, Maj John F Miller (Jack) flew B-29's off of Tinian late in the war, ran a primary flying school in Arkansas up to that point in the war. About 30 years ago (iirc) he was at the airport in Memphis and Fifi taxi'd up. He caught the crew and told them he'd been an aircraft commander during the war. The turned around and took him back out to the plane and gave him a full tour, and even offered to take him up. He declined, saying his days in the cockpit were over. He passed away 12 years ago with a smile on his face, a life well lived.
His son, my uncle, joined the USAF right out of college, flew F105's in Vietnam, A7's, F16's, and F117's during his career, retired as a two star with 4000+ hours in fighters. Years after my grandfather's tour of Fifi. my uncle got a ride from the Fifi crew, and after hearing about their careers they let him take the yoke. He said the B29 was like trying to drive a boxcar, and he couldn't imagine taking off of that runway at Tinian with a full bomb and fuel load. My grandfather had always been his hero but seeing what flying one of those things was like brought newfound respect for Jack. When he told my grandfather about his trip my grandfather teared up.
Glad to see these old birds kept flying. I hope people will continue to drag them out of scrapyards and restore them for future generations. That reminds me, time to send in a contribution to the NEAM which keeps "Jack's Hack" on display for future generations.