We finished up the first annual last week and everything went well. This weekend I noticed the first signs that my starter adaptor (P/N 642087A70) is starting to slip (220 hrs total time on engine). When I first bought the airplane (170 hrs) I noticed it still had the Iskra starter. The first thing I ordered was a new starter (Continental 658741 or Hartzell PM2407). Continental recommends this starter in SIL-16A. (https://www.aviationpros.com/engines-components/aircraft-engines/piston-engin