I'm not saying that it is impossible, but very rarely can a detailer leave a 100% swirl-free finish by using a rotary polisher. The rotary isn't for finsihing it is for compounding, cutting and removing imperfections from paint.
I always like to finish the job with a Porter Cable dual action polisher. The dual action is what you need to take out hologams. Modern clearcoats are very soft in most cases and the circular or spinning action of the rotary polisher is what puts the holograms in the paint.
Yes, a rotary buffer can make short work of scratches, deep swirls and oxidation that a dual action polisher cannot touch, but there comes a time when you have removed most of the imperfections from the paint and then need to finesse and polish out what is commonly known as buffer swirls or holograms.
If you are finding holgrams after high speed polishing, don't lower your speed. Grab a Porter Cable dual action polisher, turn the speed up and finish the job swirl and hologram free dudes!
It's just like polishing a fine diamond!