Playing DDR using both Pads!

I do not know if anyone has seen this, but I witnessed this spectacle today at an arcade in Toronto.

A man was playing DDR Extreme using BOTH pads!

Insane!

I thought people playing DDR at the hardest level was nuts, but DDR Extreme has songs where you use both pads, and this guy was going at it, no problem!!

HAs anyone ever witnessed this?

a. wrong forum
b. doubles mode has been in every DDR mix since #1 (minus the solo version, of course)

It is still quite a feat. I have a hard enough time with one pad. I royally suck at DDR.