Since I will be training to be an airline pilot, would it make more sense to just get the first class certificate first instead of third, then second, and then possibly after all of my training finding out I can't pass my first class. Or, do you have to follow them in order? I just think that it makes more sense to get the first class now. Even if you have to go back every six months, it is worth it to find out if I am fit to fly now instead of spending thousands of dollars to find out I can't cut it health-wise. Kind of confused, please help.