If you went subsonic from supersonic did the F4M tuck? I remember at Coningsby, would have been around '76 an OCU stude pulled about 10G, blacked out and the USAF nav instructor in the back flew it until the pilot recovered. Luckily it was a twin sticker. The a/c was a bit bent...
Talking to the nav later he said that they had gone subsonic and tucked in, he was waiting for it whereas stude wasn't.