It was a sheer joy for me who lives under the Biggin Stack to have a double-dose of Concorde at 1830-ish last night (and the night before 'cos I was walking the dog) as well as the later arrival (usually about 2125) - whatever the mod on the earlier flight it seemed a darn sight noisier than usual which is great because it meant that folks who are usually too daft to look at aircraft in flight actually did so!! YAY!!!