However, if they were to send an extra 5 7772s to Gatwick to operate more longhaul routes they would need feed
BA don't really feed the long haul they have at the minute as it's aimed at UK resident, high end leisure. So aside from feeding from GLA / EDI / MAN (less so now the early departure was dropped !), BA LGW long haul stands on it's own two feet. This is not the same as a hub, BA used to hub at LGW which meant duplicating a shed load of London flights at both airports, depressing profits on both LHR and LGW. Also every route that moved to LGW lost yield when the traffic stayed at LHR and used the competition. Hence the hub was closed and now BA and VS at LGW have stand alone bases, that do have some feed but do not behave as classic hubs.