Samiam - it didn't come from the towel. and I don't think those are spider-web surface cracks. They're just swirls. i really suspect your problem is technique. You said you used circular motion. Try the scratch-x again (I'm suggesting this because it is milder than the fine-cut - BOTH are aggressive enough to work, and BOTH will leave some scratches of their own if not used properly, the fine-cut being far more demanding.) - this time, rub in straight lines only. If you're doing this by hand, use a folded, moistened terry towel, or better yet, a foam applicator. Use some elbow grease, and rub, and rub, and rub, and rub over the same area until the material has almost completely disappeared. As it begins to get really fine and dry, reduce your rubbing pressure. Then look again. If the marks you see are still circular, then you didn't get them out. If they are linear, then you've got good seeing conditions and you either didn't work the product enough, or the scratches are now so fine they should be easily filled and completely hidden with a polish or glaze.