These are so important knowledge for beginner and intermediate climbers, I used to focus too much on footwork that I forgot our body (core) is the one connecting the hand and foot, without engaging core, our body don't act as one. And really all the training helps in improving at overhang,and in my case, also my core (my weakest is core and pinch in overhang). Slopers is still my worst enemy, hurt my wrist before when climbing slopers and luckily it recover over time. Thank you Mini Nonaka !! I learn a lot more in this video.