I''ve used a tiller tamer on all of my boats.
Present one, the engine in installed in a well and there is no room to move it. So, I must be moving to use the rudder when docking. What I do is tighten it up but leave it lose enough to be able to move it with some muscle power. This gives you better control when you need to let go of the tiller to catch a line, etc. It is
especially useful this way when backing up the boat prior to ramming the dock or when setting the anchor. It will help stop the rudder from flying over. They are quite simple and a greeaaate help!!!!