Gull again

I better start a new posting because when those posts get too big- blogger starts playing up with the spacings and layout (hence the mess below).
Basically, Andy Tweed has re-raised the issue about 'that Arctic gull' that was causing havoc this winter in and around the London area (was there only one bird??). Seems like investigations (assuming correct identifications have been made by the 'natives') have revealed that some Glaucous-winged Gulls can be relatively fine billed, approaching Herring Gull in bill structure. Perhaps these are small females? Also it comes to light that some Glaucous-winged Gulls can have white primaries- which may be due to variation or perhaps, especially in April, could be due to bleaching. Something else that came up (new for me) is that the grey mantle feathers shown on the Beddington bird are actually quite a good feature of Glaucous-winged Gull.
The post below, shows birds which have been identified as Glaucous-winged Gull which are non-classics in various features which are pertinent to the Beddington Bird.
The jury is still out on this one, I reckon. For me, I simply do not have the knowledge or experience to make a conclusion but am certainly considering the most likely possibilities being a Glaucous-winged Gull hybrid/unsual variant Glaucous-winged Gull/other hybrid throwing up a 'look-alike'- can it go any further?