I have polished the beading. Polishing any metal is a progressive process. It can start with aggressive abrasive, proceeding to the finest of polishing compounds, depending upon the state of the original piece. Assuming that a particular grit of compound will do the job for all jobs is simply incorrect. If you start with too fine a compound, you will just be polishing the scratches, and you won't be happy. Compounds come in a variety of grits, and wheels come in a variety of compositions and weaves. You can certainly experiment. Starting with too light a compound or too soft a wheel will do no damage, and will reveal the need for more aggressive materials. You just need to develop a keen eye for perfection.