I think you need to get your timeline worked out, and also work out your 'personal story' and see how much of it you can prove via whatever means possible.Thanks for your insight. Looks like a uphill battle on our side.
The least amount of 'gaps/holes' you have in the story, the easier it will be to defend it. KBC will clearly fight each and every one of these cases, so its likely you will have to prove you were influenced by the flyer. This is easier said than done, especially a decade after the fact
Putting yourself in their shoes, or having someone else play devil's advocate, may help you put up the best possible defence possible. If you need someone to play this role, I am sure you will find some willing participants here on AAM
Don't give up hope, but you need to make the story stick. For everyone legitimately influenced by the flyer, there is probably 10 using it in an opportunistic manner at this stage. You need to show you are part of the 1 legitimately influenced.