Andy, I went round and round with Sunvox regarding Delta's profit sharing and receiving a DC on top . It took a couple of months for him to see the light about Delta's PS. I am glad you got a Delta match on that
I hope that eventually you'll understand that Delta's work rules, reserve, "rolling thunder", PB days, sick leave, vacation and a whole host of other work rules allow the Delta pilots to credit huge months of pay. Yes, sometimes it is by working 16 or 17 day, sometimes way less, as Fangs and Hockeypilot said.
Other than PPU, is there any way for United pilots to credit 120 hrs/month?
BTW...we all understand that "not everyone" can do it, but guess what? A lot of pilots don't want to do it therefore, it is fairly common up and down the seniority list depending on the niche that one is in. But there are a lot of different avenues to max out pay. Additionally, that increased "productivity" also reduces the number of pilots required. It doesn't do any good for you to understand the in's and out's, you'll just have to trust Fangs that it is very commonplace.