I haven't had any staining take place on the black trim of my cars with either the SMR or FI2. What type of wax are you using? I think most carnuba waxes will stain the black trim, but it can easily be removed with peanut butter. If you're worred about staining the trim, for piece of mind, just tape up the trim.
I'm not sure how the chrome trim reacts to any of those products. I've never worked on a car with chrome trim.