LGS,
But Skybus own/operate St. Just airfield and they've already refused one chopper operator to operate from there ... they're keeping any opposition/competitor out of their little grass aerodrome!
Airbanda,
One problem with Culdrose, indeed Predannack airfield also, is that there is no railway and the roads become congested.
Redruth has a railway and the A30, there's always Portreath (Nancekuke) airfield ... but that's another story