That I couldn't tell you, but, given a choice between an Advantage Plan and a Supplemental Policy, why would anyone chose a supplemental policy.
The difference in costs, to a recipient, between the two is so substantial, it seems fishy.
Even if it does seem fishy, or to good to be true, I intend to go with an Advantage plan. Do you think you, or I, would be grandfathered in to the advantage plan if they do away with them?