^ I went the same day, the queues were long, but we got on 12 rides and 3 mazes.
It's about queuing intelligently! Don't just queue for a ride you want to go on if it's a 3 hour wait, ride other things.
And I'm guessing it was so busy because it's a Saturday, and this year's event has been promoted like there's no tomorrow, so everyone knows about it. Good on Thorpe Park to be honest. Yes, it means longer queues for us, but they're raking in the money now because that little more effort they put into this year's event.
I enjoyed the mazes we did on Saturday. We were in the first 20 groups to go in the Cabin in the Woods, we had a good time. We queued slightly too long for My Bloody Valentine because the woman letting groups in (who was actually lovely) was letting in all fastracks and nobody from the main queue. I also got spat on my an actor there which wasn't pleasant.
The Asylum was fun, as ever. I'm just sad that there was no park wide theming, and the roaming You're Next "actors" were just... Cringe, really.
I still enjoyed myself though! Very fun day.