Good day,
I am not sure about even calling this a "supercell" in my post. But we took a time-lapse of it and it was rotating hard. The "cell" was way too small to have any precip core and such, but the rotation of the cloud column was impressive.
I used to have a time-lapse of this cell posted a while back but I have to try to find it. I do have a link to a music video of the chase of 2003, and in the video around position 0:42 seconds in, a brief shot of the timelapse can be seen. (Link is below, requires real-player)...
http://www.sky-chaser.com/m4musvid.htm
The rotation of this cell is very impressive despite it's small size.