EschewVice, from what i understand revenues have came from trans tech which was merged somehow into vsul. not sure what if any revenues have been generated by spectrum tech of vsul. been following vsul for a few years, after poster from vsul posted on yahoo apdn board. that is when vsul market cap was about the same as apdn. his message was to tout vsul over apdn. vsul was trading at .70 then. not saying not to buy vsul may very well a huge force in years to come. also not 100% positive but think someone in managment of vsul has been involved in ffiv and mvis in a major way. gl