A girl from my group got pulled, though I don't know for what. To be honest I didn't see how anyone else did dance-wise, I was really caught up with getting it down myself haha.. sorry! I don't think it's so much how well you memorize the moves (because they only give you a very short time to learn it/practice it) but how well you PERFORM during the dance. Of course try to get it down as well as you can but I think what they're really looking for is how well you sell it, because they know you won't get it down pat in 45 minutes. Though since you want to do advanced dance, I think you need to have the dance down AND sell it. A little bit harder, but if you're a dancer and semi-quick learner you should be fine
To be honest though I don't even know if you can do advanced dance through the CP - I could DEFINITELY be wrong though, 'cause I'm not familiar with that area in the least, but I'd definitely look more into that.
Sorry I can't be more helpful to your situation! You will be fine if you stay positive and smile