So much has been written on the use of free strokes and rest strokes, so the focus of these videos is more about the lesser covered areas, or areas not usually discussed.
Taking it for granted that most guitarists are familiar with tirando and apoyando, this video explores playing apoyando on the ring finger (a) as part of the arpeggio pattern i, m, a - really useful and well worth the effort. One issue though is the terrible tone of the ring finger, so the video shows how the angle of the finger must be adjusted to find a half-decent tone.
Sor taught in his Method that only i and m should be employed with the thumb when playing anything… very good advice given the limitations of the movement of the ring finger and poor tone, but a lot of work. Unfortunately arpeggios are complicated and awkward string crossings are unavoidable, so compromising is always necessary and building up the independence and tone of the ring finger is a small hardship.