changing something out of boredom is a surefire way to lower your Level of Play
. you become good when your strokes become so boring that you can do them asleep.
doing a stroke because another one bores you is a big reason for losing
(even @ the pros, see dolgopolov).
that doesn't mean changing to one Hand is bad but if you always Change when you get bored (today feds FH, tomorrow noles FH...) you will never get consistent.