Originally Posted by
acl65pilot
Those that are senior can strategically bid to have off the second half of the month and as a result not fly at all.

That is the only shortcoming I see with a simple bucket RAW value number.
Sorry, but that doesn't make sense. Days off are distributed evenly by the company. Imagine a category with only two pilots. Senior tries to do what you suggest. Junior is off at the beginning.
Trip comes up.
Guess who flies?
You can try that again with 100 pilots, or 1,000. Still works the same.