Well, a brief search of the archives revealed someone who did test it, who did not have a "monetary" influence:
http://forums.pelicanparts.com/showthread.php?threadid=72664&perpage=20&highlight=cool%20collar&pagenumber=2
And Bob Tindel also tested it too, but of course you won't believe him, because I paid him $1 million to skew his opinion:
http://forums.pelicanparts.com/showthread.php?threadid=72664&perpage=20&highlight=cool%20collar&pagenumber=2
The people who claim that the cool collar does nothing without testing it are basically saying that I don't know what I'm talking about. With two degrees from MIT, and a few (peer-reviewed) books under my belt, I would like to think I have at least some credibility.
-Wayne