I would like to hear everyone's method of applying one-step products (KAIO, poliseal, D151, etc.). Assuming a DA is used, how thoroughly do you work the product on the finish and about how long does it normally take you to apply the product to a medium sized car, not including the time needed to buff off the residue? I guess what I'm really asking is...how different in procedure is it compared to say working in 2'x2' sections using products solely dedicated to full paint correction? Generally, how much of a work time is needed for one-step products to achieve mild to moderate correction?