I got the opportunity today to watch a high volume detailing operation today, although I'm not sure what exactly was going on.
After washing the vehicle they moved it to an area where 2 or 3 people at a time worked on it. 1 person clean interior, 1 person cleaned windows and dressed tires, and 1 person operated a DeWalt rotary with a large wool bonnet (12"), btw, I have zero rotary experience.
This particular shop used AutoMagic products.
The guy with the rotary layed down lines of products from a squeeze bottle directly to a panel then buffed (at relatively low rpms) with the large bonnet until the product was almost gone. He then wiped with a terry cloth rag (didn't see a MF all day), but not very thorougly. After he completed the buffing process he inspected each panel and removed any remaining product with a spray (QD?)
Most of the vehicles were late models that didn't require extensive paint restoration (compounding). I'm guessing the AutoMagic stuff was a 1-step cleaner wax.