Rules of thumb (for show automobiles) - which should apply to the Aperions since they are clear coated.
-Never rub the speakers with a dry cloth. When the speakers are covered in dust and are wiped - thats when swirls/light scratches occur.
- Use quality microfibre clothes with a bit of "plush" to them. So that particles go "inside" the groves. Flat clothes "shovel" the dirt rather than pick it up.
-Becareful with the white cloth that comes with the speakers. They have exposed stitching which is dangerous.
-I'd mist the cabinet with a spray bottle, then wipe with a microfiber towel that is slightly wet on one side. I do not advise with pledge or similar product since they contain oil. To completely remove the oil, you must rub/buff. The more you rub, the more there is a chance for swirls.
I detailed cars for automobile shows for years.. My advice goes against what Aperion Audio recommends but I just wanted to share.