Hello everyone. I have little experience with a DA polisher. I have used mine twice at this point on two different vehicles that were not mine. My wife and I have a 2011 Ford Ranger daily driver and farm use truck. My goal is protection over a show quality finish. Sure looking nice is fine but I am more interested in protection from rain, mud, etc to help the truck last. Thanks to the wonderful folks from this forum I have what I need to wash, clay, and polish the truck. What I want to know is from a maintainence point of view, how often or safe is it to use the polishing machine on the paint with say an all in one product? Should I clean it well once by machine and then maintain by hand unless scratch or swirl repair is needed? Thank you all very much.