Yah I was a little scared too at first. But it really is the cheapest and easiest way to drop temps by as much as it does. All i did was grab an old picture frame, pop out the glass. Soak the 800 grit paper and then tape it to the glass. Then back and forthe 30 or so times, and turn 90deg, and go again. I would reccomend starting with a lower grit, say 400, then go to 600, then 800. And if u want a nice shine 1000+. But i would sctart low, if its as bad as mine you will be happy you did lol..