What worked for us ......
On our C27, my lovely First Mate scrubbed the mast down using a mild soap solution and medium steel wool. Then she did it again using an extra fine steel wool. Immediately after that she used a marine aluminum polish and buffed the living day lights out of it using a drill and a few buffing pads. Several friends thought we’d bought a NEW mast! However, after telling them what she’d done to make it gleam like that, the “pole polishing” jokes started.Later, eh!Ferg