From my opinion, I wouldnt do Jet U. or a CRJ transition course if you dont have to.....yea they are good and can give you a headstart in groundscholol, however if you dont have to pay the loot to do it, dont! there are plenty of airlines hiring right now that you dont need it for, at my interview there were 3 of us and only 2 of us got hired, the one who didnt had the a CRJ transition course under his belt and still didnt cut it, so it doesnt matter one or the other, yea it is helpful and will give you a leg up somewhat in systems and flying glass, but its not a neccesity from wha tI have seen thus far.