^^^^^

Sorry; I tried to quote you, and somehow editted your post.

Anyway:

I've been to 52,000 in the F-4 (FCF) and it scared the hell out of me, even at 500 indicated. You said edge of a knife, I said "Like standing on a basketball."

There were three guys in my squadron who had been to 62,000, and one backseater who had been to 82,000.

I can vouch that at 52k, the cabin press was 26,000. I thought: "If the cabin blows, we're going to pop like zits."

I didn't do it again.