your set up is important. the basic set up for speed is a low action (i know this is disputable, but i'm covering the basics as a short cut) and 9 or 10 guage string sets. make sure your neck is a straight as a tack, your frets even. jumbo frets will help ease the fretting strain. i'm assuming that you've got them on your 'board (i'm relishing on the delights of small high frets, more dynamic for me. i wanna feel the wood)
the trick to speed? its in the conservation of energy, and the focus of it.
whew! haha! im heavy picking on a .13ths on a higher action acoustic guitar, and i can feel the difference when im using electric guitar.
and i agree about discovering your light fingers, imagine your fingers typing on the keyboard, you dont need much effort, just a light one,
remember if you put more force tp press , youll need more force to get your fingers back up, that repeats the cycle, making your fretting fingers slower.
still, practice slower and correctly.
