Just because Mesaba has been doing them for years does not mean they are safe. Every airline has a perfect safety record before their first accident/incident. This is not in reference to Mesaba but the fact that something can go routine 364 days a year but it only takes 1 bad night.

The fact that we have pilots flying 4 CDO's in a row, on the back side of the clock, in the worst weather in the country, while doing 2 legs each way into small EAS airports is not in the utmost interest of safety under any airline or situation.