Perhaps because I’m still new (as of January) so it’s still fresh, but 3 of the 4 videos are in the 30 days to play.
1: week 2: bring wrist forward to get more curve in the fingers
2: injury? Not sure about that one
3: week 1: goes over posture, don’t hunch over and shoulders loose
4: week 2: transitions from G-D-G and G-C-G
hopefully, I understood your question and that it helps if so