Please help me understand something. Stansted is as busy and at times busier than Gatwick. The airspace is not particularly large in the scheme of things, being only about five miles either side of the approach lanes and from ground level up to about ten miles out in to the approach. why is it necessary to fly through it rather than around it.
From where I am looking on the maps, the only sort of denied transit that would cause a big detour is for aircraft routing nw/se or se/nw. Are there really that many routes in those directions?