Your rig does sound killer. I like the Nobodys Fault singer of those three.
I heard that he was recording in the same studio as Aerosmith. The Aerosmith guys were out for dinner or something and the guys in the control room saw Steve walking thru and asked if he wanted to give it a go. So he walked in and used their stuff and just busted out Train Kept.
Edit: And if IIRC, they sort of just snuck it in during mixing. It was "just another take...you were really feeling it that day Joe".