Would most of the KAL Line Training Capts be ex military? The ex KAL Korean National pilots I have run into are mainly from civilian background and they seem fairly normal, but they have briefed me on the situation in KAL.
Apparently the local Civie trained guys in KAL are given a hard time as well from the Training Gestapo, and as such many have left. So if they take it out on their own guys, we as expats have buckleys chance of going through that system untouched.
I suppose the upside is that if they leave you alone once you check out, and the conditions are good, it may be worth the grief, as long as you are fully aware before you take it on. Good Luck guys!!