That's interesting. I checked my account and my codeshare operated by AS but purchased through AA is on there. It posted as American Airlines flight 6825. I looked at the indicators of how many more miles I need. It posted towards the 40,000 AS metal threshold.

Unless it was an error I guess it really is based on metal not which airline got the money. Only 2 Transcons to go for Gold. My next trip is planned for mid-June just have to add another immediate tuenaround on the back end. Sweet