DSR track bumps analyser tool story.
 

I didn't know where to place this thread, so it went here.

We are back in 2011; Thursday morning at the Auto-Plus Nationals, Reading Pennsylvania, a strange tool came out of the DSR pit.
(A strange long aluminum rack (may be as long as a T/F wheelbase) with bicycle wheels and some sensors/senders onboard).
Tommy Johnson JR look like he was in charge of this trailer/tool.
So my friend and I tried to film this strange device as fast as we could (the reason of this short and not so clear video).
Quick flashes came out of our minds, so we went back to the stand section to see this tool running on the track, to find out it was used to map all the bumps on both lines.
Enjoy,
https://www.youtube.com/watch?v=-Lup2GB6B-o