Thanks for your input. That's what I was thinking and why I've been doing it that way. But it seems I get the most stuff out during my nebulizing session. It almost feels like the vest dries me out when it's on and when I breathe in (kind of stutter breaths because of the oscillation), and not much of anything comes out during that session. In general, I don't have much mucus and I'm not bothered by coughing during the day or night so I guess I'm lucky in that respect. But I know there is something in there because my CT showed small mucus plugs and that's what I'm trying to get rid of.