"Maybe what's more important, is that the F-15X is being designed specifically to slot directly into the USAF's deeply established F-15 infrastructure, even down to seamless pilot conversion. Our sources say it will only take one or two flights per F-15C pilot to convert to the F-15X for the air superiority mission, saving millions on retraining aircrews, not to mention ground crews, that are already intimately familiar with the Eagle. "
Sounds familiar!