In Oct we were at Food & Wine and entered WS at 10:45 and the booth in Canada and others in that vicinity were already opened and serving. I wasn't happy because we had been killing time and could have shown up sooner.
But I don't know if there's a difference between Food & Wine and Flower & Garden because last spring, we had to wait till exactly 11:00 for them to open. Really wish it was 10:30 because I feel people are up early, hungry and based on all those lingering in the areas waiting, people are ready!