Another thing to keep in mind when running the pull pull cables for the rudder, the hinge line is not 90 deg to the thrust line of the fuzz. If your cables are ran parallel to the thrust line of the fuzz { as mine were } the cables will not be 90 deg to the rudder hinge line { off by about 10 -12 deg. }. This will make rudder control kinda spongy around center and another possible cause for flutter on this surface.