Raid,
I've always been curious about that V1 Summicron that you say is your fav. How does it handle flare? I've only used a V4, and an asph, and I like those both for different reason, though I'd probably choose the V4 if I had to.
btw, I get the impression that the 'lux is not so good wide open. Not that I'm a sharpness freak, but I recall seeing this one photo where a person was in front of, and surrounded by, something like christmas lights, and IDK, maybe spherical aberrations(?), made the lights into this swirling nest of litebrite barbed wire. Distracting to say the least. I know that lens has it's following for sure though. Maybe I'm just jealous because I failed to buy one when they went for $750. 🙂