It is important to remember that Sweet told me countless times that he could only get the VTA 
to work with one group of magnets. Originally he thought he had made a universal discovery, 
which would work with any magnets, and his funding was based on the hope of eventually 
patenting a workable unit. It later transpired that only his set of magnets worked, 
commercial magnets will not oscillate, but, of course, investors could not appreciate this 
fact at all and turned nasty. A lot the misleading information he put out was really aimed 
at keeping these people at bay and give him time to solve the repeatability problem.