Small tip , use a old car tag and bend it in the curve of your rim. Can use it to act as a shield to protect your rims while you spray the tire shine. Will help with clean up.
If you're getting "tire sling" it means you're using too much tire dressing. Try using just HALF as much tire dressing as you sprayed on in this video and your tires will still shine just as much, but won't sling off. Same applies for most cleaning products, people apply too much thinking it will work better/faster and it just goes to waste.
