That's some really nice footage, thanks for posting the link robbo. Good formation flying too, considering they are right in the propwash of four big props being turned by Merlins.
I was however disappointed to see that despite being capable of carrying up to 22,000lbs of munitions and having made a perfect run over Buck House, they forgot to release the bombs. The family that lives there are a bunch of Germans after all :rotfl:
On a more serious note, whenever I see the BoB Memorial Flight in tight formation, it's always a lovely sight (and sound), but I can't help noting the irony that the tight formation flying the Spits and Hurricanes concentrated on in the BoB was one of the main reasons for many of the deaths of Fighter Command's pilots in that battle, which is always a sad thought.

Chock