If you notice the use of the word "had" versus "have." Yes, I have worked for both union and non-union carriers. Until recently, I "had" never worked for a union carrier. That is why I don't fully understand every detail about a union carrier (and truthfully I will never really "understand" them).

I still maintain that the non-union carrier was far superior to similarly sized union carriers. Plus I didn't have to give up 2% of my pay.