Recently I asked if anyone was using a PTO chipper to clean up their branches, etc.. when wood cutting. Thanks for some good advice. Managed to pick up a good used Bear Cat this week. I don't have anywhere to store it indoors. Would covering it with a canvas tarp be superioer to a plastic or poly tarp? My thinking is that the canvas tarp would "breathe" and allow the metal to dry out after condensed frost melt, etc.... Can I get your opinion?