We have a couple of Waves at the rental location I work at that we have had problems with the rudders and cams working right. It seems the springs are way to stiff if any tension is put on them with the plastic screw plug. If we back the plug out enough to have no tension, the rudders will lock down and kick up nicely, but we have had the plugs back out and get lost (along with the spring). I put in some shorter, weaker springs which improved the performance, but they rusted pretty quick. Any ideas on a solution. These are rental boats that get pretty hard useage.