If you use a straight rudder tiller at the servo and have the clevis pins aligned with the rudder hinge lines you will not usually have any significant play in the cables. The play develops when one end or the other of the cables ends up offset from 90 pull angles. Using the supplied hardware works out perfectly when you pay attention to alignment. If the clevis pins are ahead or behind the rudder hinge line you will develop cable play. A little will hurt nothing. You can move the clevises on the rudder servo tiller in a little to match the threaded rod in the rudder. You most certainly do not need a full 3" tiller to obtain well more rudder than you will ever be able to effectively use.