british company runs a course at dublin airport,2 hr class followed by 45 min flight. they have a class on the 7th of july at clarion hotel,cost 350, i can not recall their name.they say they have 98% success rate. what i want to know is what happens to the other 2%. aer lingus no longer run classes, i asked air hostess on flight back from u s. i do not know how the airline crews deal with constant flying.