Thanks for posting about this - don't think I even knew this existed. Looking it up, we won it last year beating Crawley Wasps 3-1 in the final! Shame I can't get to the game on Sunday.
I coach Montpelier Villa and it seems like people are coming from all over the world to watch this game (We have a lot of international students in our squad)
The previous highest attendance for a fixture involving Brighton in this competition is 381 (that I can find) so we're hoping to go past that and then some on Sunday.