Anyone have suggestions for "training" the ring finger on my plucking hand? My index and middle fingers are strong, but my ring finger seems palsied when I try to incorporate it -- and I've been trying for awhile now. What works? What doesn't? Anyone else frustrated by this problem or is it just me? I really want to develop a three-finger technique, but it's a hinderance when I play in a band situation (and I unfortunately don't have much time for practice outside of band rehearsals and jam sessions)... Thanks!