This is one of the earlier videos... The volume in this may be a little louder due to the lack of Cats... but it should be fairly similar.
Tone on the slip on might be a little better due to the resonating properties of the catalyst though. Take it for what it's worth.
My apologies, the site won't let me embed this video for some reason.
http://www.youtube.com/watch?feature...&v=RfoJ14Exffw