I also took along another Franka Solida II 6×6 Rangefinder, this is a slightly different model than my other one and looking at the results the lens is a little inferior.
Using the Sunny 16 rule exposures were mostly quiet accurate, the rangefinder focus was also not an issue.
These are Kodak Hc110 with Kodak Tmax100.
The camera is pretty soft around the edges especially when greater than f8. I think I’ll stick with the other model.