Fly the C-17! I love that fat bird! I thought about joining the airforce a few years ago but they couldn't guarantee me a flying job. If I joined, I'd want to fly the C17. Also, your body will adapt to the whole g-force thing. Your body's ability to retain blood in certain regions will improve but like the man said, "baby steps". Read anatomy books, learn about the skeletal muscle pump, physiology, blah blah blah....I dont know if they have g-force physiology books.