The quality isn't going to get any better, it's converting from the raw flv. But as long as it's not any worse than the original (which VirtualDub can't edit), then the whole video should look alright on Youtube. Which is fine by me.
I can't say the "quality" looks any better than usual either.
the first trick didn't look good the first time you did it, and the camera swoop makes it hard to see the ridiculous 360 advanced flip trick you did over the set. did not like.