From my limited experience, Turtle Wax chrome polish is more abrasive than Mother's, which is more abrasive than Optimum Metal Polish. So that's my most aggressive to least scale:
TW > Mothers > Optimum
I've used a 6.5" orange one before, worked okay, lasted well. Would almost prefer a flat pad in the future, or a 3M waffle. Sorry I can't answer all of your questions, but that's my limited experience with them on a rotary.
Isn't that great? Somebody needs a product to remove bird sh#t, and we get to suggest Bird Sh#t Remover. Brilliant! ;)
Got anything that'll make your car smell like a strip club? :D
Well, I hated to strip the M21 and didn't want anything weird to happen compatibility wise, so I went with a coat of Pete's 53 on the M21 and it looks great.
HRJ
I have M21 because I was just trying something different before a car show later this week. Having tried that, now I'm thinking I maybe should have stuck with what I normally use. So my question is about how to proceed...typically, I wouldn't be doing this.
My other thought was to try and salvage it with a wax as a LSP, ie Fuzion or BFMS. The M21 really isn't bad, just not quite as slick as I'm used to. But how much does that matter once the sealant is topped with a wax as an LSP?
I put a coat of M21 on my black show car and although it looks pretty decent, not sure it has the pop of some of my favs, like BFWD and UPP. Can I go ahead and stick one of these sealants right on top of the M21, or do I need to strip it?
HRJ