Here me out...
Disco train was all about being rev'd up! But what really drove the piece, aside from tempo, which you have, was the thumping and driving bass. You really gotta bring out the bass. Otherwise this track is really cool and kooky. It has the calliope circus feel, but the disco is all but gone now. It's been replaced by rock. This isn't a bad thing, I'm just saying let that bassline you got going on back there really thump things along. Lik at 3:00, I just wanna feel the bum bum bum bum along side all that great harmony and guitar ya know? Is that so wrong?