The company I referred to is not in the U.S.

I've never been to Castle Creations, although I live about five minutes from their old location, and about ten minutes from their new location. I also have had no contact with them regarding any type of lap counting equipment. I'm not sure that lap counting equipment would fit in with their current focus, which is probably not the racing market. Racers make up a small minority of the RC market in general.

But if I pursue both the transponder and decoder designs, I'll certainly consider them as a possible manufacturer.