No I think the rating breakdown as it is works fine, im just going to move everything up by 300 instead to reflect player mu. This will still confuse people as mu is not shown rating, but odds are we are going to just toss shown rating as some sort of measure for the matchmaker and instead just give people their mu alongside a placement period for new players prior to them being given a rating.
So essentially, we're in between a systemic change but everything is working as intended.