The 35mm
Starburst quality: it seems to be a characteristic of this lens. Not expected, but welcome.
All the old 28mm and 35mm PC lenses have 9 aperture blades (except for the 35/3.5 PC which has only 6), and they all have dead straight aperture blades - perfect for creating well defined starbursts.
In my limited experience with PC lenses, horizontal shifts do not affect exposure so there is no need to meter manually before shifting. Vertical shifts change the angle at which the light reaches the light meter in SLR cameras, this causes an incorrect reading so exposure before shifting is needed.