I had practiced the "wrong way" for a few years when I started(Ive been playing like almost four years)and actually began to use all my fingers only six months ago.Nearly everything I did above the twelvth fret was done with my index,middle and ring fingers...thats how I did all my scales and licks.Its better to practice less and practice well than to practice hours and learn bad technique.
Later! \m/
Try once,fail twice...