What do you consider to be a 'reasonable' amount of advance notice for a FFP to announce changes to its program and allow for a transition to such changes.

In the last couple of months, we have seen SQ abruptly terminate its relationship for transferring points to SPG, and as noted below, LH was equally as arbitrary in restricting BD Cash/Miles award access to LH F product.

http://www.flyertalk.com/forum/showthread.php?t=847190