28000 equates to about 80 movements / day. City didn't have it easy getting CAS for 130 / day, even then it wasn't joined up with the TMA. Give Farnborough a 5nm radius ATZ then we will all have a dotted line to play with instead of posturing and muscle flexing.
Me? I have about 80 / year. Your ex-management has offered to fix us up with an ATZ for us to stay in to keep out of their way. Can't see our aerodrome operator liking that.....!