I was also at the Birds. A friend of mine had the Spektrum in his car. He took it out and he was 2 tenths a lap faster.

The Horizon Rep at the race was stating, "use at your own risk". It is being blamed on the flouresent lighting. I was also at the World's where it worked flawlessly. So, perhaps there is a lot of truth in it not working indoors.

US Indoor Champs everyone removed the systems as well.