The 767 is where all the cool kids are, anyway! As far as 767 pilots not bidding ANC, everyone who's come off seat lock and wanted to transitioned has transitioned. Few, if any, are holding ANC (and are doing so voluntarily). It was a concern for a little while that they were playing games up in Purchase, but it turns out the concern was unfounded. A good number have recently transitioned directly from the 767 to a lower 48 -400 base, IIRC.