This was the auction as it occurred at my table. +300 ended up being close to a sims top. It was only beaten by 2 tables who had managed to score +660 as E/W. I'm looking at the board and wondering how that could possibly happen. E/W being vulnerable means they must have been in 3NT making 11 tricks. It seems inconceivable that the defense would be botched so badly as to allow that to happen, so any ideas?
Traveller can be found here
edit: fixed board number for correctness sake.