I have received information from IRD a company in California of a system that electronically "Helps" to avoid barnacles and algae to stick on the bottom paint they ashure (IRD) that this Sonic-Max system makes a barrier that will allow your paint to last longer, avoiding cleaning since the barnacles will not stick as easy, My questios is if anybody has had experience with this System , or what you think about this solution for a 34 boat mine is a Hunter 34 the cost is about 275 dlls, and includes 12 sensors James Hardy San Carlos Sonora Mexico