RVSM in London Airspace
A polite request.
As I sure most European pilots are aware, we have brought in RVSM in London airspace. If you are entering our airspace above FL280 and are not RVSM compliant it would help us a great deal if you tell us on initial contact. This means we can provide the appropriate separation of 2000ft above FL290. This would negate lots of form filling by both us and you.