We are getting into the nuts and bolts, sometimes literally, of our 2003 Bennington tritoon family project. I had a few questions come up along the way that i was hoping to bounce off the community. First we have multiple threaded sockets in our handrail. What is supposed to thread into these? my first thought was a rod holder, but my wife thinks they might be for the fender\bumper tie offs. Second what size cleats go on the rear corners of the boat. mine were both lost at some point. Finally my wiring schematic has a switch for "indirect tube lighting" what is this? we have a separate switch's for the stern bow and instruments lights, and for the docking lights. Any help with any of these questions would be greatly appreciated.