Daisy FWB, HW77 serial numbers, modern seals?

Are the Daisy marked FWB (150, 300, 300S) any "better" than the non Daisy marked ones?

Does the first made HW77 in 1983 start with serial number 1,000,000?

Will the modern blue or green piston/breech seals for FWB (and damper seals for A250) deteriorate with time like the original white ones did?