After claying, I am going to use Wolfgang products with a PC. I understand I don't have to clay the whole vehicle at one time (I'm 67 and a triple by-pass recipient), but more to the point, MUST I do ALL the buff work the same day, or can I do various panels a day or so, apart? If so, what are the drawbacks, other than having to clean the foam pads and lewt them dry, between buffs? Wolfgangs used will be Total Swirl Remover, Finishing Glaze and Deep Paint Sealant. Thanks alot!