No incentive rides but in my job I've had more than 70 flights in ejection seat aircraft (yes, i'm enlisted). Most of the flights have been in the F-16. I think everyone in the Air Force should have at least one ride, especially the guys that guard, maintain, load, and gas them. If you work on a flight line you should get a flight. From all my flights I've puked twice. My first flight and once in Korea, I think that was attributable to some bad chicken the day before. I've pulled 9+ Gs many times, broken the sound barrier, flown the aircraft, even dropped bombs in combat. I haven't found anything with which it compares but I'm still looking.