What direction were you leaving the ATZ?
Always exit to the east until I hit the Trent. Coming in I usually route via the VRP at Haxey as there's plenty of time to give them a call. Wasn't my usual controller who's normally a very affable guy. It's not a problem by the way, just wondered what the official line was, didn't get into any bother or what have you.
Concerning the amount of movements, Humberside which is just up the road has more movements than Donny yet gets by with an ATZ...although there's usually some airline or other doing ciruit training at Donny.
Yes I know it's not Finningley any more, but having been stationed at Lindholme and flown from RAF Finningley, that's how I'll always know it.
I still refer to it as Finningley as well, having gone to the BofB days there since around 1958. The NDB is still FNY. Mind you Humberside which has been Humberside since 1970 is KIM from when it used to be RAF Kirmington.