Originally Posted by mdavies
This brings me to a question. can you cherry pick which routes collect which miles? my general preference for a OWE would be AA, but I also collect BA miles (no AA miles on BA across the pond), and would likely be very close to silver on BA.
You can credit each segment to a different FF plan, but search on FT will reveal lots of past discussion about the problems and difficulties in doing this (basically agents changing sectors other than the one that you wanted to change).