In this lesson, Anders M bars with the index finger and frets with his middle finger and pinky. I find it less of a strain to use the ring finger instead of the middle finger - for example, lets say I'm barring the 6th fret, then my ring finger can reach the 8th fret easier than my middle finger, and my pinky has no trouble reaching the 10th fret with my ring finger on the 8th fret. But is it better to use the same fingering as Anders? For example, might we want the ring finger to be free for some technique I have not learned yet?