I go that way quite a lot.
Whilst I have never done so before I think it is time for me, and I would suggest everyone else, to start filing on Stansted zone transit "refusals".
Clearly they appear to be the exception in terms of the very poor service they give.
Just because the Eurocontrol flow management limits have been reached within a block of airspace, that does not mean transits are not possible.
There is an intersting article in Flying this month talking about flow control in the States. The point was made that it is very very rarely the case the sky runs out of room, the problem is a lack of tarmac.
The artcile goes on to talk about airspace access and the proposal to charge in the States.
However, the point is made that when you drive along the highway do you get out of the way for evey commercial vehicle on the road because they are using the road for commercial purposes - bu**er me do you!!
Perhaps we should defend our rights of free passage more strenously?