I can't remember seeing this past thread, and I've used many of these products mentioned.
But I'll invent a new saying right now. "Think Like Mike"! (Don't you folks like this one?!)
I can never ever recall Mike, and classes, crews, going head to head against a beautiful show vehicle, where they didn't take the extra needed time to protect trim, glass, engines, and other areas of a vehicle from correction products no matter what they be, brand, aggressiveness, etc.
They took the time to mask, cover, protect.
This is purely wisdom and experience in action.
As for LSP's, they can of course vary. Again use caution.