I tried searching but maybe not that exhaustively, plus I'm putting this question here rather than the AA board because it seemed logical...

A sudden change of plans means I'm going to be ticketing a DONE4 ex NRT before the end of this month, and I have a couple of expiring eVIPs (AA SWUs) that I'd like to use. One can get me to NRT, but am wondering if anyone has any experience using an eVIP to u/g from D to A on RTW segments operated by AA. I'm assuming if AA issues the ticket (which they will) it shouldn't be an issue, but not certain.

My choices of routing are AA NRT-ORD with an eVIP into FC (good) or CX NRT-HKG-YVR or JFK in J (also good, but longer.) If I can save the Asia coupon and still get AA in F I think that would be better and certainly faster.

Any experience on difficulties/ease? Thanx.