i'm planning to transfer a large sum of points from my CC to my Asia miles account to book 4 tickets on partner airline. How likely is it that CX site shows phantom partner inventory? The flight i'm looking at is on AY. CX shows 4 available and BA shows 4 available as well. However AS and AA shows 1.

I don't want to transfer the points over and end up not able to book the flight, especially with the upcoming devaluation.