The clear coat is shellac on the FW and 201 to protect the decals even though they are painted. I use the french polish method because it puts more shellac over the decals. It is more work buts gives a nice smooth shine to the machine. If you have plenty of clear coat on the machine TR3 will shine it up with no problems. If little shellac remains over the decals TR3 is a glazing compound to remove fine scratches in paint and it will silver the decals if one is heavy handed with the stuff. I have used TR3 on machines with a good clear coat with no problems but it would be the final smoothing and shining of the clear coat.