GBZ, I agree, but traffic has increased immeasureably [did I spell that correctly?]
Before I retired, I remember long "chats" about co-ordination, like,
Manch on "Westerlies" ..... any Woodford IFR Dep will affect MAN.
Manch on "Easterlies" ...... North and Westbound Deps will affect MAN
e.g. To Prestwick and Warton.
So, as a case for GA, I honestly think that it's a no no.