The Plasma Tube machines are expensive and I have not been able to afford one to do any testing. If there is anyone who can loan me one, I will gladly test it and return it.
My gut feeling is that the Beam Ray will not be as effective as the MY is. This is why I have followed this route. I am definitely not saying that Beam Ray does not work, only that I do not feel that it would be as effective in broad spectrum applications.