Eagl has it right. He knows.
I myself know that I go out like a light bulb at 7.5G, and yep even with a G-suit.
That being said, our fighter pilots (and yours too) are able to keep flying and fighting at 7.5 G. For how long...you'd have to ask eagl, but I can tell you that the guys I flew with were able to keep their head up and in the fight at over 7G. This is not a sustained loading though.
It is important to know that the high G experienced by most fighter pilots are not sustained very long at those high numbers. Neither are they sustained very long by aerobatic pilots.
At any rate the ability of the aircraft surpassed the ability of the pilot years ago.
cheers,
RTR
