so how are the zincs on the rudder shoe or the one you temporarily attach to the tiller head electrically connected to the negative of the battery (12V system) or the grounding wire of the AC? are they connected?

and is the zinc on the rudder shoe or the ruddershoe electrically connected to the upper rudder shaft and the tiller head and temporary zinc?

side bar: the rudder shoe, is there fiberglass between the rudder shoe and the inside of the boat, or does the rudder shoe form the pressure hull/watertight barrier?

how is it attached (i only ask if it isn't in the manual, which i will check after this...)

much grass to all.....