Does it matter which airport I land at (Heathrow, Gatwick, Manchester)? I mean, I'm sure it doesn't matter officially, but practically, are all the immigration officers equally informed and trained about the HSMP process at the various airports?
Has anyone heard or experienced anything about this? As a matter of fact, does anyone know of a case where someone with EC under HSMP was NOT admitted into the UK on arrival?
Sorry if it's a silly question, but you never know. The reason I ask is that I can get a much cheaper ticket if I fly through an airport other than Heathrow. Once I leave my current job, I will be in penny-pinching mode.

Thanks.