They do fly from BRS and have been spotted quite often, BIA management are aware they do, infact I was told of one of these lovely awkward ladies who's daughter is or was at university in GLA or may of been EDI, she often pops up making use of the ease and cheapness of EZY instead of 8 hours on a train!
I'm sure she's not the only one to make use of an international airport on their door step.
Theres a big S.B.A.E board gone up at the roundabout by Winford garage, I'll give a tenner to who ever paintballs it first