Ray,
That's not my experience. For example I have tested the same focal length Zeiss and Schneider lenses for the Rollei and the zeiss got a ton more 'bubbles' that were also larger - same aperture. Theories are fun but they must be tested. I'm still not sure you and I are talking about the same thing anyhow but appreacate your effort even if I dislike the pedantic approach. And definitely I do not care for the bokeh of that mamiya 300.