I woke up early a couple of days ago to catch "prime time" US in the MA. The game is completely different with 500-600 players, compared to the usual 300-400 on euro prime time. In addition to large scale bomber attacks, which are rarely seen during euro time, there was definately lag. I've never experienced that during my normal euro playing hours.
Connection quality was stable, nothing unusual there. But there was a definite chat- as well as "air combat" lag.
Camo