The 'Great Debate' - Spitfire vs BF109

[Glider]

One small observation, riding the Buffet doesn't mean flying through it. Its flying on the edge of the buffet, touching it and easing off a fraction.

If you fly in buffet your wing loses its effectiveness and you lose performance. Try to pull through the buffet i.e. tighten further and you will spin out. Riding it is riding the edge

My guess is that what they mean with "riding the buffet" is that they fly along the state when the inner wing sections were basically stalled (or maybe oscillating between stalled and unstalled air flow) creating the famous buffeting sound and vibrations that was used as an indicator by experienced pilots.