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Greg, congrat! For such a fine lens. I almost fixed my 50lux at f1.4 as that lens perform gracefully at f1.4, the in focus plain is well defined with smooth DOF transition. The bokeh at edge can be tricky that you can trace double edge there, so avoid put high contrast stuff with strong line in background if possible.
I did shoot some images at f2.8, the same story as most 50mm lens if not all: very sharp, more than I or most people who don't count pix needed. The reason I don't use my lux at f2 like nikkor 1.2, rokkor 1.2 as l feel it offer stellar performance WO already, and I don't feel its bokeh improve much as other fast glass, so I just don't bothered. For 35lux R, it is also very sharp lens at WO, but I use it at f2 more often as its bokeh improve a lot by stop down 1 stop. Make it having one of most beautiful bokeh lens.
I only test once for its landscape performance but soon lose appetite to zoom it everywhere on my D700, cause the difference is very small. But I feel it is not as good as cron, zezf p50, nikkor 1.2. The reason I don't care 3 luxs' f5.6 performance is that is not the reason I bought those lenses, or what I paid for. Sharpness can be cheap these days having said that: they seems all perform great and better than their MTF suggested.
you have to take my word than seeing test pic as I hate do that lens like 21/25 biogon or leica 24, 21sem, I will definetely do tripod infinity test but not for my 3 lux.
hope this make sense and help you a little bit if any.