[Slick61]

Interesting... scratchX isn't that abrasive in my experience... must be soft paint... or you're using too much pressure. The residual swirl marks could've been left by the abrasive in the polish, or possibly by the applicator you used. Not sure how soft/hard that paint is. Meguiar's makes several lines of polishes with specific uses. Most of their products utilize diminishing abrasives, i.e. they get smaller as you continue to work them, which tends to reduce the occurrence of swirl marks. In your case, I'd recommend #80 (Speed Glaze)... it has very little cut to it... works great with a D/A polisher & foam polishing pad... tho it's not super-easy to find. If you're working by hand, and only have chain store selections available, you may be able to find some Meguiars Deep Crystal polish that would suit your needs. I'd probably recommend a clean foam applicator pad, and a clean microfiber towel for removal.

It's all trial & error... start out with the least abrasive product, & work your way up til you get the desired result. Good luck!

PS... no, I don't work for Meguiars... but I do like their products... they're consistent, reasonably priced, readily available, and have always worked well for me. I've been to their beginner and advanced detailing clinics... very enlightening!