The idea I was proposing here was not to combine the seniority lists in the traditional sense but staple the entire pilot group to the bottom of the mainline list as is.
Why fold up a perfectly good and cost effective operation when they love the cheap feed so much?

Some pilots could choose to bid bigger equipment and better salaries when they can hold it.
Some could elect to stay on the rj. Perhaps you might even have a few bid down to the rj for a specific base, better qol etc.
Everyone would benefit from mainline seniority, longevity and benefits.
This absorbed or acquired regional would have stacks of applicants keeping the express/connection/shuttle operation well staffed.
The major can decide to control the hiring process as well.

Mainline pilots would control all flying, this could be a very powerful negotiating chip for the next round of talks.
Can any current or past mainline pilots weigh in on this issue?
General input from anybody else is welcome as well.

There are still some issues I do not have definitive solutions to:
- Salary at the absorbed carrier (low enough to appeal to the acquiring major, high enough to attract applicants).

- Union, pilot group and management political realities.
Are these real hurdles or could this program benefit enough parties that it might end up a reality...