Hi BV,
I remember, as a stude on 4 FTS in the late 70s, the kerfuffle caused by using the airbrakes at high subsonic speed leading to mini booms all over north Wales. This seemed to mainly occur during GH aeros and tailchases.
The instruction we were given was to roll & pull buffet to reduce speed, rather than use airbrake to slow, if we were at high ish (> 0.85) mach. This not surprisingly led to some fairly agricultural applications of large G loadings before we were told just to SLOW DOWN (but not told how to!!).