Im just kind of guessing here.

Let's say you want nothing but day turns over 7 hrs credit. I'm guessing you would need to be in the top 20% to hold that. Consistently at least.

And for anyone interested in coming here, the time to get to the top 20% of the FO list will vary dramatically between bases. DEN, MCO, LAS are more senior, PHL, MIA are more junior

I'm sure someone will chime in with better info