Replaced the battery in my wife's car. I couldn't get the positive terminal properly tight, the clamp nut bottomed out just before the terminal cinched tight on the post. The positive terminal is one of those formed sheet metal jobs, so the old trick of hacksawing out some lead around the clamp nut is not an option. Also there's a couple of other wires connected at the positive terminal, so I don't want to replace the terminal. I took some copper foil, a few layers thick, the size of a postage stamp, and put that on the one side of the terminal. It seemed to tighten up and work. Should I go and get a proper battery terminal shim (I didn't know they made them until I looked just now) or are we "good enough"? Any thoughts?