which sonus pads do u have? blue, green, orange..??? well id recommend using the blue pad with sonus paint work cleanser, or aio, and id personally put klasse sg on by hand with a microfiber pad. also, to get more "bite" out of the polishes, u can always use the green pad with aio, or sonus. (i wouldnt used the orange unless u try a more abrasive polish with the green pad first) good luck with your pc.. you'll get better results than by hand.