I am looking at a 2006 Mainship 34T, that seems in very good condition except for one potentially serious issue. The owners had disconnected the lower helm engine controls years ago and installed a different control at the upper helm. It is still a mechanical control. They have infered that this was due to a problem from Mainship but I haven't found any other postings. So any 34T owners out there experience this problem and if so how did you correct it so there is controls in both locations. Thanks