Dude,
I use to big time...but I exercise them daily by just running scales.....Now I can used the pinky just like the other fingers. One exercise I do is to run the scales using fingers 1-4 and making sure that my picking action is up and down each time. That way you can increase your picking speed. A lot of guys do not alternate their picking motion up /down each time ecspecially when moving between different strings and this slows you down a bit.
