I just joined this forum, found it yesterday, just ordered a new udm from ag. I got a kit with some pads and ohter things. I've been just waxing my cars for the last 50 years and though it is time to get into the machine thing. I have too mustangs that the paint is like new, so I guess just a good wax will do on them. Then I have an older truck and car that could use more work. I read about the claying and the swirler remover stuff and then the last thing is to wax. Where does the glase part come into the the picture. Or is this not necessary? Do you always glase before the wax. Thanks.