@skylights' post, as well as others in here, have made me much more certain about 1w2. Especially now that I've made comparisons with myself and other 1w2 folks in my life. My mother is a definite INFJ 1/6/? social-last and I see vibe similarities re: 6-ish nervous energy. Whereas even when I (1/7/3) am anxious about something, I can generally hide it well. Stanford (I think) coined a term about their students, that I've adopted despite not having gone there: "Floating Duck Syndrome". Calm and serene above water, but paddling furiously underneath.