I'm trying to learn more about Hydrodyne's construction process for their tournament inboards that they started producing in 1991. Supposedly their construction process used something they called Hydro-core which added something to the lay-up process in the hull, adding strength. A process used in offshore racing boat hulls, but I can't find anything about it. Any help or guidance to other sources that might have history would be appreciated. As Hydrodyne made these boats for 5-6 years I'm expecting someone has information on how they were built. I actually have an old video promotion that includes factory footage that again talks about the process. Any help appreciated!