Thanks for the replies.
The delays already existed and I wasn't suggesting the request caused them, however I was perplexed. I thought 2000+ metres would have cut it.
Out of interest to the ATC ers out there, does this sort of thing make matters any more difficult for your workload? I would have though on 34 they could exit before 27, but 16 would be more of a pain.?
I obviously need to find other things to think about during my flights.