As new Asia Miles member flying CX sometimes and have a lot of questions. Thanks in advance for your help and time!

1) Is award inventory on CX flights the same with AA miles as Asia Miles? Do Marco Polo member have more inventory, and if so, what levels?

2) When I fly CX, I would normally credit my miles to AA (especially since I'm EXP). Does CX track my flight activity as an AA elite - and it there any way I could get sectors credit or something while still getting AA miles verses Asia Miles? If I fly CX a lot as an AA elite, will CX notice?

3) What is the best Asia Miles credit card option for residents of the USA? I saw an old post about the Ebay CC - stating a conversion rate of 1 Ebay point = 1.15 Asia Miles. When did the conversion rate change (apart from the current promotion, the rate is a LOT lower now)? Does the Starwood Amex remain the only good way for US members to earn Asia Miles?

4) When I redeem an Asia Miles award, can the ticket be refunded (miles redeposited) for a fee? Can dates be changed (pending availability)?

Thanks so much for any replies!

I'll let the experts repyly to the rest of the questions, as I don't use AA's FFP.

Earning Asia Miles by CC in the US is tough, conversion rates are terrible everywhere except the Starwood Amex. The Ebay rates are the next best thing (at least during the double miles promo)

It's too bad there isnt a way to register for the Citibank CX card in HK (for US residents) The card offers 1 mile per dollar for spending in HK & China , but offers 2 miles per dollar for spending everywhere else! If you were able to get this card as a US resident it would probably be the ultimate miles card (exchange rates?) however the only way to get it is if you know someone in HK who has a credit rating they will allow you to use, or if you live/work there.

1) Is award inventory on CX flights the same with AA miles as Asia Miles? Do Marco Polo member have more inventory, and if so, what levels?
Sometimes. If a particular flight is full, Asiamiles members have the added advantage to waitlist. Elite Marco Polo Members may get instant confirmation on a flight with no award availability. In undocumented cases, Diamond MPC members can actually get award space from revenue seats. In case you're wondering if you can book an award using Asiamiles and then decide to 'switch' the booking to using your AAdvantage miles but using that same booking PNR... NO.

2) When I fly CX, I would normally credit my miles to AA (especially since I'm EXP). Does CX track my flight activity as an AA elite - and it there any way I could get sectors credit or something while still getting AA miles verses Asia Miles? If I fly CX a lot as an AA elite, will CX notice?
No. Asiamiles themselves will not track your bookings if you credit your miles to another FFP. CX themselves however may be able to track your revenue if the local sales office deem you to be a high revenue client. There is no way to get credit with Asiamiles and another FFP as well. It's one or the other.

3) What is the best Asia Miles credit card option for residents of the USA? I saw an old post about the Ebay CC - stating a conversion rate of 1 Ebay point = 1.15 Asia Miles. When did the conversion rate change (apart from the current promotion, the rate is a LOT lower now)? Does the Starwood Amex remain the only good way for US members to earn Asia Miles?
I am not familiar with any card other than the one above to credit miles to Asiamiles in North America. So maybe that's it.

4) When I redeem an Asia Miles award, can the ticket be refunded (miles redeposited) for a fee? Can dates be changed (pending availability)?
No. Tickets issued cannot even be reissued due to routing change. In some circumstance, tickets will be issued if say, you're upgrading a J ticket for a F. But that is not even stated to be permissible in their T&C. On rare occasions, they have bent this rule for their top tier members. Dates can be changed as tickets are valid 1 year from DATE OF ISSUE.. not departure date.

When I lived in HKG, I flew CX on a near daily basis, all in full fare F class (this was before they started running many of their regional services as 2-class only), crediting everything to my pre-existing AAdvantage account. I got zippo special recognition from CX (I couldn't get my HKG-based travel agent to finagle me invites to special CX events, much to the amazement of many CX F/As, who I got to know quite well through my frequent travels.) That's the bad news.

The good news was that I was treated much better as a Oneworld Emerald on CX (albeit via my status as an AA EXP) than I ever was on AA itself. Moreover, I had a much easier time booking award travel on CX than AsiaMiles members (although I understand that award availability has tightened up and that AsiaMiles members have a more straightforward award redemption mechanism available to them today). My locally based Hong Kong friends used to be incredulous at how easy it was for me to book CX award travel via AA, then simply hop over to the AA CTO to pick up my tickets (which, at this point, is no longer necessary, since AA issues CX awards as e-tickets).