17'000 people at Chessie in a day?
This explains a lot, they must have raised the max capacity a wee bit... I remember when the days of 15k guests were a rarity happening once or twice a year if you were lucky... Helped by the rides tending to push throughputs a lot better as well (as much as they could of course, but I never worked on Buccaneer and had a 45 minute queue)...
Of course, some of the smaller rides aren't helped by the addition of Fastrack, which adds a fair bit of time to the queueline... Maybe not doubled but still adds a chunk on, doesn't excuse 80 minutes for Dodgems though...