wish I had your sharpness
And have you done some official "tests"? Have you shot from a tripod with a remote? Or from a tripod with a delayed shutter and using mirror lockup? I had some challenges around sharpness when handholding that I was able to eliminate with a tripod... or just setting the camera on a rock and using a delayed shutter. This showed me some of it was technique, and some of it was Micro-adjustment of my lenses...
Just some ideas - and if you want more info just let us know 









