OK but her is the problem. Lets say ex Dal # 2999 is an MD Ca in BOS and the company decides to move in 320's to the base in May of 09.. Ex NWA # 3000 based in DTW but living in ORH decides to transfer to BOS with the new 320 base. Meaning # 2999 got screwed if it meant a pay raise and or better flying or if he just wanted to fly the thing.OK, but where doe it say that you can't cross bid certificates or where doesn't say this award isn't effective immediately.There is a huge void of time for loading up out of seniority if somebody had control of the flying with an agenda. I know the FAA would frown somebody working for two carriers at the same time they don't care if you move from one to another.