FWIW. What we hear on TV is very different from what they are hearing in the studio. The judges have commented several times about how they'll listen to the taped version of the performance and what they hear is totally different.
I mean, last night night Scott sounded like a wailing cat and the judges said he sounded great. Puke a rama.
I've been saying since last year's finals (I only started watching last year) that they need to feed the judges the "air" mix, not the "house" mix -- the acoustics in that hall really aren't that good, apparently.