As a UAL guy I am opposed to the "Premier Pay" for the 400 only because that plane will be gone in the next 7 years and that "Premium Pay" will go with it. At the same time I think that whatever bid you hold you should get paid the same rate regardless which variant you are flying. If you fly the 757/767-200 you should get the same pay. If you fly the 737500 or the -900ER you should get the same pay.