I spoke to the NCUA today and once you put a beneficiary on your account it makes it a Totten Trust.
So one beneficiary and the account has $250,000 insurance and 2 the insurance goes up to $500,000. If only one savings, CD account etc. is over $250,000 and up to $500,000 it is completely covered by the NCUA insurance. If it is over that amount with the same beneficiaries then get some into another institution.
I assume banks are the same now as the calculators seem to be the same. Years ago POD/ITF had to be on the title of the account. Not sure about now. But POD/ITF have different rules for dispersement or they use to.