Worked recently with an Ex CX FO who is highly regretful of his decision to leave CX. He works his ass off here with many fewer days off, and for less money. He really feels he fu*ked up and knows he'll pay dearly to reverse it. He feels stronly he may actually apply to return to CX, well knowing he will likely not see the left seat for a very very long time, but feels he must leave this place.
Something to keep in mind.