My wife and I have been in plan F-HD with Humana since original enrollment in 2014. We pay $65/mo each. I don't think our pricing has changed much over the 7 years. I just saw on this forum for the first time, "issue date" pricing which is what Humana uses and I guess is why the premiums have been stable. If we were to change plans, e.g. go to plan G with issue date pricing, would that be based on current age or age at original Medicare issued date? Btw, together we have saved saved $15,000-$20,000 over the cost of full plan F since origination.