I always wondered about his systems that he developed, but he never made the system public.  Hopefully the formulas that he created will become public knowledge someday as I'm interested on the concepts and whether they actually work or not.  At one time I thought he had a website that you could send you physical measurements to.  Based on those he would come up with the 'proper' style that you should be employing based on that data.  Maybe someone here tried and could provide more info on the transaction and whether it worked or not.