Definetly, Matt's trick is the winner! Thanks, Matt!
Narrowing the area of the plug in's action sure makes a difference. And it's so good to know now, thanks
Just for curiosity I send one last sample with the same parameters that Matt used but without the band action limit. You can hear the artifacts clearly already in the first sentence.
Jeff, regarding the multiband expander, it isn't anything promotional but I'm fine using Izotope (yeah, once again) Ozone's multiband dynamics.