Duo definitely seems to have the better carrier system that would make it easier to get it back to the same dial in setting without having to redial in. Once you can’t trust that dial in, you massively slow down the speed to switch burrs.
However neither are remotely simple or quick enough to me to want to attempt to do this on a daily basis, I’m still sat on the side of two grinders, one for pour and one for espresso, it’s just if I want two grinders for espresso, one for clarity and one for body or one that I switch burrs on.