I just watched the episode, couldn't resist it anymore.
I absolutely loved it. It's got to be one of my favorites so far in Season Three. The only real problem I had with it was the fact that Pinkie Pie was getting a bit too.. Iduno a good word for it that doesn't make it sound like I'm insulting her. <_< She seemed a bit too.. Wild? Maybe. She just needed to calm down a tiny bit and I feel kinda bad for saying that 'cause I love her. I mean, she's Pinkie Pie, who couldn't possibly love her?
Anyway, I thought Spitfire came off as a little too rude to Rainbow Dash, but I'm guessing that was only because she was trying to be tough to everypony and not show signs of favorites. She wanted them all to try their best of course.
And finally.. Lightning Dust.. Oh my god. That pony. Iduno about everypony else, but even though she put Twilight's, Fluttershy's, Rarity's, Applejack's and Pinkie Pie's lives at risk, I have to admit she's made it into my favorite ponies.