What kind of paint was that on? I've only used my ZAIO a few times so far, but on GMC clear it's pretty much functionally nonabrasive (OTOH, on some exterior plastics on the Audis it's *VERY* abrasive).
On the Yukon, I used a red Griot's waxing pad. Dunno if it's the same as other red pads or not (the Griot's *orange* pad is unique among orange pads).