Agree. Try 3M automotive "Rubbing Compound". At $8, it's not THAT very aggressive compound, but should speed up the restoration process—maybe bring back that deep blue color.Try just buffing a small patch before going at it with the sandpaper... Might not need to sand the top.
If 3M automotive "Rubbing Compound" isn't aggressive enough, try asking at an automotive paint store for compounds that are more aggressive. 'Course, it will depend on whether or not you are using a power tool to buff...Try 3M automotive "Rubbing Compound". At $8, it's not THAT very aggressive a compound, but should speed up the restoration process—maybe bring back that deep blue color.