Centaurus and others - 'HC' to all - this 'argument' has gone around the houses at airlines and here before. (Did I mean 'discussion'...?
)
Many years ago I produced a table for my 'then airline' demonstrating that if you flew
correct speeds on finals, particularly at F40, the A/T would 'cut in'. It was dismissed, since - well no-one does, do they.? The 27'RA stops it 'cutting in' on an otherwise 'normal' flare thus eliminating the 'tailscrape' theory, but I flew with one 'senior' (in all respects
) TC who often 'began' the flare ABOVE 27RA and we performed a terrific fly-by of the airport to tumultuous applause from the spectators.................
I eventually learned to live with it, disconnecting it around 1-200'ish when visual. The 'advantages' put to me (rolled up newspaper style) are significant:
Min speed reversion (a guarded 'plus' - ask THY)
The option of a reduced power 'auto' g/a (in manual A/T Full Power is required)