Got a chance to complete my 1st attempt using a DA...just did my truck this week using a GG6 DA with a 5 inch backing plate and LC Thin Pro pads. First deconned using McKee's Xtreme Iron remover. Then clayed with GG clay bar followed by McKee's 360 and McKee's HiDef Sealant. Topped that off with McKee's Poli Coat. On my test spot I tried using a white LC Thin Pro but it wasn't getting rid of the swirls so switched to the orange pad. Now I need to dress the tires, haven't decided what to use yet.