Going from medium to large format brought so many other things in play that it wasn't like going from APS-C to 35mm at all- movements, film holders....
Yeah, I figured that much. I wasn't crystal clear, but I meant the difference of going from 35 mm or APS-C to either Medium format, or large format. Neither require super-sharp lenses, nor do people really talk about lens sharpness as much as SLR users do (as far as I knew).