i am open to suggestions of the fastest & best way to shine the aluminum housings on my kirbys. i have several to do. so far i have done wet dry sanding & alum. polish. it has helped some but how far do you have to go to get that shine. there is some age staining, no pits. so is it old school or new techniques. i would like to hear from those who have labored at this & succeded. THANKS:kirbydude