FI=hour building
Trying not to be pretentious ,I would say it depends on the individual,
if he is a wankle or not motivated it wont matter if he is building time, doing it for a living or as hobby.
This kind of FI will have the same behaviour in all he/she does, even if he gets hired by an airline.
I know time builder's FI whose students are very happy , and as i said there are others.....................
Do you think that any FI that is not time builder is giving quality training to his students?
LEVC