A note on the transfers: they must be done in blocks of 5000.... so you may want to adjust your visa transfers accordingly.

Also, Amtrak is giving a 1000 mile bonus for updating account info, so you can squeeze a few extra out this way--- although you would once again only be anle to transfer blocks of 5000 out of Amtrak-- up to a max 25k/year out of Amtrak.