Most lines are 12-13 days of work. There are some 11 days of work out there. All of these credit in the 90s. Good luck finding that at AA. There's not a big need to get rid of flying when you are only working 12 days a month.

Idk how many days a month a junior reserve captain at AA does every month, but I bet they are regularly crediting guarantee which is like 78 credit. Find me a senior FO that isn't flying 100 credit on 12 days of work a month.

Number of days worked being equal every month, the senior FO at SWA is going to make more money then the junior captain on reserve at AA.