As 'predicted' on 3rd March...
BV, as usual, talks a lot of sense, but my problem with Knighton is not that he isn't aircrew, isn't an air power practitioner, nor that he has never had an operational command, but more that he seems unimpressive in his appearances before the HCDC, and smacks of having become the continuity candidate once Turner did his bike rack impersonation.
Whereas both Mayhew and Stringer have always impressed and always seemed immensely high calibre.
I hope I'm wrong.