Better layer 2 path

[apwiggins]

Question on OSPF-MDR. I have 2 routers, but one has a better RF path. If I knew this a priori, I would be able to encode the better cost metric symmetrically at the router with the better RF path and also at its neighbors that point to it.

If someone in mid-scenario introduces the second router with a better RF path, I can encode the cost metric at the better source router a priori but its neighbors won't be configured to know and may continually select its worse peer as the neigbors see both as having equal cost. Assumption here is that at start time, all routers in have equal cost metrics prior to the new router being added. Only the new router knows that its RF path is best and has encoded its link metric cost to be lower than its peers.

Is there a preferred way that OSPF-MDR can advertise to neighbors that it has a better RF path (cheaper cost/metric) in order to achieve route symmetry?