But since you want to take something completely off, maybe you want a 100% polish like PB PP rather than a 1/2 and 1/2 like AIO which is part polisher and part sealant and therefore -- IMO -- can do both reaosably well but in this case, you want 100% pure polishing action.
Actually, this goes to a question I wanted to ask Poorboy: if I am using AIO do I need to use PB PP -- and I don't mean in a case like this where I really want to take off a new LSP, but maybe months after I detail when the layers have worn down and are negligible and I normally would figure "ah, just AIO'ing will get whatever's on the car off and prep it for the final layers."
And as a sidebar, if I use a SSR on a car, would that too take off any LSP remnants that make using both PB PP and AIO redundant (or maybe using a SSR makes BOTH unnecessary?).
As I understand it, SSR's are just more abrasive polishes (?) so if one used them, maybe the PB PP and/or AIO steps are not necessary?
Of course, this is all about getting RID of layers and not about having the surface ready for whatever you're gonna put on. Poorboy already posted to me that using PB PP is the best way to prepare a car for EX-P so even if I was using an SSR I'd probably want to use PB PP afterwards since SSR + EX-P probably isn't as good as PB PP + EX-P.