Originally Posted by
belfordrocks
ANA and CO (and SQ and every other *A airline) shares the same partner inventory, so the availability is the same no matter which program you transfer to.
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That's not correct. The idea is that it should be the same but in fact it is not:
UA is known for what is called Starnet Blocking: they don't offer certain availability of partner awards to its members.
LH and BD have access to SQ 77W and A380 Business inventory that no other partner has (LH is paying a higher internal price for those awards while no one else was willing to give SQ more money for awards seats).