I've tried various settings, like enabling "sport", and eco mode default to "off" at key on, etc, and none have had an effect disabled MDS.
Diablosport and HP-Tuners can turn it off in the PCM, but this will required you to swap your PCM with a modified PCM that will allow you to write to it. The 2015+ PCM's are locked and cannot be written to. Both HP-Tuners and Diablo offer a mail in PCM exchange modification service.
I used diablo in the past to turn off MDS, as I can't stand when it kicks on an off. I know some people dont care and dont get it, but its just not for me. I going to be doing hp tuners soon so I can mess with some other stuff too that diablo doesn't do. But as of now, those are you two real options.