Thanks for your guidance, immensely helpful. Looks like we'll be able to work around the sponsor issue and I will join the Amex account as an AU in order to transfer the miles to my AM account.

One final question, since I will likely have to speculatively transfer 70% of the redemption amount to AM in advance, could the same miles serve as the "deposit," if you will, for all four potential awards, or would I need 70% of each award separately.