You have no items to compare.
1) Use with Meguiar's Professional 5" backing plate (W67DA)
2) Apply product uniformly to disc and work surface with a dual action polisher at 3800opm
3) Clean disc frequently using Meguiar's Pad Conditioner Brush (WPCB) or compressed air using regulatory approved nozzle.
4) Deep clean disc using Meguiar's Pad Washer (WPW) or machine wash/dry.