I realise this may affect your deployment, but one has to wonder why for every 5 passengers you fly to Stansted, 95 others elect to drive from the Tayside catchment area to EDI (source: Govt report, 2013). It's not because of the fares being unrealistically high, as we know the Govt is already heavily subsidising them; so convenience, flexibility and the disproportionately lower price must be the prime reasons.
CAA stats show that the route has fallen from a peak of 70kpa to around 20kpa in the last decade; compare that with the exponential growth ex EDI to LON.
Fact: Low cost airlines and low fares suck the traffic from regional airports to the major hubs. No s*** Sherlock. And the taxpayer is currently bearing the cost of trying (failing) to arrest the inevitable. There are no facts to suggest otherwise. Creative and/or vanity projects will bring in new money/visitors to the region, but again the Govt's own reports recognise that extra visitors will arrive in the main by surface transport along the A90, not through DND, so they can't arrest the shrinkage. To be fair, the Govt and the city council should be applauded as they have really tried everything to support it (including massive support of BE to AMS), but the locals don't want it in the increasing numbers it needs to justify these huge subsidies. The report states that breakeven for the airport is at a multiple of 20 times the current passenger throughflow.
And for DND vs EDI, you can also substitute PIK vs GLA.
Now study the history of scheduled air services ex Sheffield, or Nottingham, Teesside, Oxford, Cambridge, Carlisle, Manston…