A vital part of guitar technique for the left hand is to release the fingers when the note is complete. The tendency is to pull them off. Subtle different approach that becomes more challenging when one is releasing 3 or 4 note chords and have the same or similar configuration a couple frets away. Easier to slide the fingers, but then string noise is introduced. When playing acoustic guitars this is very noticeable.
As I was working with releasing chords in a particular passage, I found myself just thinking release, release. Suddenly my right shoulder dropped. Unnecessary unnoticed tension was released. Once again verifying the Guitar Craft Aphorism - Change one small part and the whole is changed. Grateful that my thinking about my left hand had a systemic affect on my body. What else might have been released that I did not notice? What else needs to be released?