I trained tai chi and a little ba gua. I sparred a little with some karate and take kwon do people. I cleaned up. I did some light sparring with a ba gua guy and he was literally throwing me around effortlessly.
I was taught well. I would imagine that my teacher was 1/1000. When looking for him, I found at least 5 different schools that had no idea what they were doing and teaching tai chi anyways.
I’m really out of practice, but I remember that onion fondly. My teacher would have us write our fundamental principles down and then do it again a year later and compare.