Even with no desire to fly heavies, having them on property is a huge boost to our seniority in a NB BES. I hate redeyes and will never do them again at any payrate so I'll stick to the NB fleet. Where I benefit is that there are a large number of extremely senior pilots who see things differently and bid the WB. By having such a large number of WB aircraft, there is also a large number of people who are senior to me that don't compete for the same trips. As the 767's are replaced with higher paying 787's, that number will grow. Single fleet airlines don't have that advantage.