Has anyone installed and used the Flow Rite remote plug? If you have, how do you like it and where did you mount the control knob? Do you know what size the hole in the transom is for the existing plug? I am considering buying one, it seems as time goes by it gets harder to get to the drain plug. NM has a new regulation that requires removal of the plug to make sure no water is in the bilge, this means while trailering on any highway it must be pulled or subject to a ticket.