We are having intermitten problems with steering our E27. When we tack, we sometimes keep going in a circle like we over steered (but we know we haven't). Sometimes the boat is slow to respond, too. It's almost like the rudder isn't snug to the rudder post (my theory). Hubby has no theory, but wants to get this fixed so we don't look like fools spinning on our keel. PLEASE HELP!!!