OK. Thank you Brickfire.
Clear how it works. So I might get it from day one, or by the time that training is done. Worst case scenario, at least for how things are looking now as mentioned by TFAYD, I'll get IAH or another base and after few months the "trade" should be available ( I understand obviously that those 2/3 months can be 4/6 or even more, but not likely for 737 SFO)

Tangalaga