This will not be news to the veterans, but I see a lot of newbies starting some daunting rehabs and they need to know about this cleaner/polish.
I started my first monster rehab, as I call it, and had real trouble with rusted and pitted chromes and mediocre results from old standbys like standard wheel chrome polish.
From the picture below you can see what I learned.
I've been working hard to return a rust/pit bucket BR Slingy COB shell to new life. When I bought the snare, I first used regular Windex to remove the surface grime, made 2 passes with Never-Dull and 2 swipes of Turtle wax chrome wheel polish. AFTER I did all this, I was able to finally find and purchase Simmichrome at a nearby motorcycle shop. This was the tarnish/grime I got off after the first pass of Simmichrome. The shell shines far better than any cleaner/polish I've tried. The shine is amazing. The stuff ain't cheap, somewhat hard to find (try Amazon) and you need to buy a "micro fiber" cloth to allow the process to get you the primo results I'm touting here. Use sparingly, goes on nice, comes off easily leaving a brilliant shine. Makes me wonder what's in this stuff. Made in Germany. Maybe the Germans can use chemicals we can't here in the US.
Other polishes may be "dumbed down" too so to be eco-friendly. I've also read laments of "dumbed down" Brasso. Zildjian used to recommend Brasso by name. Reviews on Amazon say it's "new" formulation is now useless.
Hope this helps you. Yes Sir