I have noticed that if you are working in Capture One 6.3.4, under the LCC correction tab and then pick the sharpness setting which is directly above the Light fall off setting, the sharpness is applied to the entire image, not just the edges. I thought that the sharpness was only supposed to work on the outer edges where you would have possible fall off due to use of the outer edge of the image circle, i.e. 15mm of full shift on a 43mm schneider.
Instead it definitely applies the sharpness to the entire frame about the same which oversharpens the rest of the image.
When I used to use the Len correction tab with the Mamiya 35mm, the sharpness tab only effected the edges, but as I recall it also used to be called something different like "Edge sharpness falloff"
Has anyone else noticed this? Currently I have to process two images if the shifted image needs correction the blend them together.
I am going to try a local adjustment which does have a sharpness setting to see if I can get it to work better that way.