Just put on my winter tires that are on mags. Now I've got a wheel shimmy. I've never cleaned the corrosion from the mating surfaces, is that something you do generally? I picked up a screw in the tire within minutes of driving after having changed the tires and I'm wondering if the shimmy might just be from the plug and will go away after the excess wears away. Hate to take the rims off again and sandpaper for no good reason.