If you just have a little wiggle, a little rudder loading could be the answer. Grinding the trailing edge will result in a pull to that side (generally the right on LHR boats like MC). That pull will allow you to lock in your track without constantly having to correct for any steering slop.
Previous: 1993 Prostar 205
Red 1998 Closed Bow Ski Boat, PCM GT40, 310 hp, Standard Gear Reduction, Acme 4 blade, Perfect Pass SG/Zbox.
Tyler Ski Club
Be kind. Have fun.