hi to everyone Ive been thinking of building another tow boat a have a tow boat with twin 24v motors 6 rudders my next build will be 4 graupner 900s but I'm not sure about the speed controller do you think as Ive been advised to have two controllers 30amp in line i also have to think about 12 rudders the boat is the UNITED STATES all advise will be taken on board thanks