When I got back into music last year I used a chair in my music room. I've notice a lot of YouTube players are using a stool. I started using a stool today and initial impressions are; 1) my posture is more upright, in the chair I found myself slouching unless I was deliberate. 2) I'm less in the direct beam of my 1x12 amp which is on the floor, and I think I like it. So what is your preference?