With regards to the PTC thing. Both myself and friends here have purchased multiple converters from Kenny at PTC based on positive recommendations from this site and we live in Canada. All of our experiences with him and his staff has been top notch and extremely enjoyable. His staff members have been there forever and they all speak very highly of him. My guess is that he treats the local racers very well and them including him in the show is a way to give back to PTC. I do not know for sure but I do not think that Muscle Shoals is a huge metropolis and giving back to someone in the community that builds products that supports your hobby only makes sense! This is just my opinion and not based at all in fact. Just what I think is going on.