my TL is swirl free...i haven't done very much (corrective) polishing to it at all. when i bought it used (7,700 miles) the previous owner must have been OCD like us because i cannot find one swirl on the thing!
My 2003 is probably 90-95% swirl free (just did a recent polishing). On my daily driver, keeping paint looking showcar perfect is just not possible under time and other restrictions. As much as I love perfect paint, it's just not going to happen....
I have no swirls on the black Jetta but there is some very light marring in some area's ( PC induced half circle marks). After some time with the new rotary I'll be taking care of those. My white work truck does have some light swirls, but I'm not to concerned.