so does Alistiar Anderson use fanning?
Noel Hill does not appear to.
this reminds me of discussions about thumb position when playing mandolin/banjo,barney mckenna plays one way ,gerry oconnor plays another, so what,they all make good music.
there is no correct way to using the bellows,you have to do that which suits you .,if fanning suits you,go ahead .
I do not find fanning gives me any more stabilty,neither do I find it comfortable.
playing the concertina well ,relies on other factors,as well, as use of the bellows .