Dan - Obviously RW are blaming VMLM admin for the mix-up so I predict they'll reissue numbers and I'll be back on Green. (Harrumph.) Maybe CJ was practising MP at Reading whilst reciting a list of World capital cities in reverse alphabetical order.
Mace - I've never actually executed a BAC session but I guess it's a similar mix of tempo paces. Thanks for the link BTW, might try a few out before Berlin.
I've never got involved in such crazy multi-marathon shenanigans, but I'd say that people's recovery from the race can vary a LOT, so whilst something like the P&D plan that Millsy suggests could be a good template to work from, be prepared to adjust according to how your recovery is going. And make sure you eat loads of really nice crap the week after the first one.
Well it appears as though marathon training has got you fitter and running quicker for shorter races, which is nice. On the other hand, I don't know what race time predictor you're using but my favourite one is McMillan, which predicts 3:15:08 from your Silverstone HM time (and 3:16:30 from the 10 miler). That might suggest a tantalising target of sub-3:15, but I'd be very careful. It's your first time racing the full distance and I see such a predictor as being a best-case scenario. If it were me I would still be aiming to get round in something under 3:20 but not a lot. Aim for halfway in 1:40 and no faster even if it feels really comfortable, then push on after 18-20 miles if you think you're still feeling good. 3:13 sounds a little ambitious to me.
Finally, don't be tempted to hammer any remaining long runs, or you're in danger of leaving your best form in training.