Looking around will help free neck muscles. FM would say look at a painting, turn student around, and then ask for a description. Pat McDonald discovered the relationship of the sub occipital muscles at head neck joint to head neck directions. FM admired Australian cricket player Bradman for his use on the pitch, not at the bar. Went to see him whenever possible.
Every person can rediscover the technique.
Listen, practice, and judge for yourself. Pianos or violins do not have bad habits. It is how they are used. The same with us. FM liked story of the boy who when asked why he was writing so fast said that he had to finish before the ink ran out.