ok, i washed the car because it was filthy. i then proceeded to clay the roof of the car. is it normal for there to be residue left over after claying? should you wipe or wash before going to the klasse? i then went ahead and put the klasse on lightly over just the roof. used the damp applicator, small amount of pressure and polish, and wipe off with no drying time method. i get done with the roof and it is extremely slick but i notice some streaks in it. is this maybe places that did not get good coverage? what did i do wrong? i stopped here because i didnt want to waste any time or polish on the rest of the car if i am doing something wrong. oh yeah, the roof of the car is black so everything shows. any suggestions guys?