I have been spending the past few days doing my first detailing on my 2000 Silverado with 103 k miles. I have been using my new PC 7336 (5" weight), mcguires clay kit, sonus ZFX 6" pads with SFX-1, SFX-2, Klasse AIO, and topping it with 2x P21s. Has anyone tried to detail a gray car on an...