[AJ]

I think most of it would have to do with marketing. It would have been hard to a new company to come in and follow the basics of DynoJet to a T and hope to just start selling units. The end user could just go with the already proven DynoJet unit. So something had to be done to open up another segment in the market. I think this played a good part in it, but I'm guess there are probably some other reason such as mathmatical variances due to the work other companies came up with.