How in god's name do you get all the rubbing compound off of a paint job??

When the pad gets "loaded", I either change pads, or clean the pad by running it under warm/hot water in the sink, squeeze out excess moisture, then let it air dry.
I agree but
While buffing if my wool pad starts to load up I use this tool remove compound and fluff up the pad.
Buff & Shine Buffing Pad Cleaning Spur - 1600 | eBay