Because RFO lines pay more.

I understand, but they should either 1) accept that they will go to the simulator every 3 months, or 2) bid RFO two months in a row and then bid one month of flying to reset.

One time JH told me they had a triple FO who had not done a landing in the plane in 5 years. He was the one that the company was denying paying for his 3/3 sims. I know that was grieved, but I don't know the result. Does anyone know?