Compass in its best month only trained about 20 pilots per month. Using that number, it will take 16 months to flowback to Compass and another 16 months to flow back up. Mother Delta would have to furlough for 3 years just to train everyone.
I would be surprised if more than 25 guys flowed back. 600 were on furlough when Compass started, and 3 or 4 came?