Gipsey Queen:
You are right about the passage of time.
I joined the Tiger Club in 1978 and flew several times a week for many years until the Club left Redhill. I seldom missed a BAeA contest during that time either in the Club Stampe, (TKC was my particular preference), or later in my Pitts. I was an aerobatic check pilot at the club from the early 80's. Seems like yesterday!
I never met Nepean Bishop, known as 'Bish' I believe, but did fly the SuperTiger OAA 'The Deacon' in the series inspired by his name a few times. Lovely machine and the nearest a Tiger Moth ever came to being a proper aeroplane. I agree, Dev would have had a fit at the thought of a tailslide in CDC.
I do not recall any aerobatic chart in the hangar but I do not doubt that what you say about terminology is correct.
My point was only that the term has dropped into disuse and has suffered this fate for very many years.
What seems to have happened to aerobatic terminology in more recent times is that the language used by the FAI and in the Aresti Catalogue has become the norm. So it is 'flick roll' rather than 'snap roll'; 'stall turn' rather than 'hammerhead' and 'tailslide' for what we once seem to have called a 'hammerhead'.
However no aerobatic pilot is consistent in his use of terminology, any more than in his flying, and the only thing that is very, very seldom heard over here is the use of 'Immelmann' instead of 'roll off the top'.