My 6" Model A Deluxe has those nice aluminum setting circles. I was wondering how to polish them. Never would have thought of brasso!
Mine were really bad. I actually started with 600 grit sand paper and worked my way up to 2000. This was followed by rubbing compound, brasso, and then polishing compound. I found that the brasso was actually more abrasive than the polishing compound. I used a wheel for the polish. As you can see, the pits are still lightly visible. Didn't want to take off too much material in the sanding process. I plan to take black gloss paint to fill the index lines and numbers.
You'll be surprised at how good you can make them look!
I never thought I'd be into the classic telescope stuff but I think I'm hooked!