Video occasionally but once I knew what good posture felt like then I could feel when I was leaving it. I always found good lifting form to be a will power thi

Video occasionally but once I knew what good posture felt like then I could feel when I was leaving it. I always found good lifting form to be a will power thing more than a skill thing. Easy to maintain when the bar was empty, very hard to maintain on the last couple reps of my heaviest sets. Did form check videos occasionally to keep myself honest but really, I knew when I had bad form.