Let the international flying stay senior! That type of flying ruins you for the rest of your life. Yeah, you may have a couple more days off than domestic, but at what cost? Have you seen what those guys look like at age 40? 50?
The time to do that type of flying is when you're young. The older you get, the more you should stay on your own time zone and fly body-friendly schedules.
I will gladly fly 737 domestic CA turns between DCA and DFW as a double digit seniority captain. That's because I actually want to live a few years after my retirement!