My guess is that you're placing too much faith in the MDC. The MDC is nothing more than a collection of data submitted by photographers. Sometimes the data match the manufacturer's recommendations, sometimes not. There is no attempt on the part of the list keepers, to test and verify the submitted data. I'll refer to it ONLY if I cannot get data the data I want from the manufacturer. When dealing with Kodak and Ilford products, it's no sweat. These two companies publish very comprehensive and very good data for their products. All you need do is go to the respective web sites, download the tech sheets. and read them. Fuji, whose products are first rate in every sense, does not provide as much data as Kodak and Ilford do.