I am a lowly beginner & am starting to learn via the old Alexis Sklarevski video, Bunny Brunel's two short video's & will later get the Bass Wizard's course. I did view a really cool video by Brian Bromberg, who stated unequivocally that the hand pivots at the index finger, & because of that he prefers to pluck with the middle finger. That makes sense & it seems that keeping the idea that the hand pivots at the index finger, if you use the middle finger for plucking you can stay looser & go much faster between your thumps & plucks. I am alternating between the index & middle fingers in my practicing, & will decide which works better later. I do have the following problems: 1) the index finger is inherently more coordinated & you can place it between the strings better. But for me it is hard to use too much or too little. I can't place either finger and have it make contact at the same spot with the string 2) the index finger stays more rigid in a curved position. My middle finger dosn't seem as strong and is easily pulled out of the curved position. 3) my middle fingers nail often makes contact with the string & gets caught, even though it is short. Anyone else here use the middle finger & concur with Bromberg?