I think the most important feature of goom's coin (regardless of how it's came about) is that there 'appears' to be no significant lustre in the fields! You can see some toned-lustre around the devices but, the tone that can be seen in the central fields, is not the luminous-looking tone you'd expect to see over big lustre, which a coin of this grade should be showing bags of! Then the question comes regarding how that could've come about and, most importantly, can you live with it? I don't know how much Dave paid for his, but I'd rather add whatever I had to to your £107 to have one like that instead? I'm thinking you probably would too?