I have, many times. Last time I was there was pretty good, took about 15 minutes to get through, although I have been there for an hour as well. But my point is, how much quicker will a flight leaving LHR at the same time as the LCY flight get to NY? Just trying to determine if it makes much difference in how soon you actually get landside in NY. I have flown non-stop from Dublin to Boston and clearing immigration in Dublin in that case was a huge time saver. But when it is part of a stop from London, is any time saved?