Correct me if I'm wrong, but SQ's own *A awards are taken from normally available reward inventory on their own metal. This is not the case for other *A airlines' programs looking at SQ inventory. I am getting SQ to book a *A award on their own metal because of the need for an LH segment in the award. I've not read before of SQ using two different buckets for its own inventory for Krisflyer SQ vs Krisflyer *A awards, but certainly a different inventory is offered to other programs.