I am going to buff my car before I use the Zaino.Previous buffing episodes have produced ok results.My main problem when using a foam pad are areas of product that dry hard when buffing and it won't come off except by vigorous hand wiping.Should I mist these areas with a water bottle and rebuff?I am using 3m Perfect It Machine glaze with a pneumatic buffer.This has been a problem with all buffing media that I have used in the past ,and occurs with foam pads and lambskin pads.Am I buffing correctly?Thanks JKD:nixweiss