Do you think it possible that your Epicurean tendencies are related more to your self-pres instinct than your thinking center? Personally, I have similar tendencies/beliefs, although I stay away from drugs because moderation in that area is not something I'm very good at.
What you said about being outspoken really sticks out at me as a strike against you being core 9w1. What are you outspoken about? Do you consider yourself opinionated at all?
I doubt that because the Epicurean trend in my philosophy/behavior doesn't actually correlate with the sp instinct. The height of my Epicurean behavior was when my sp instinct was almost nonexistent. Now the philosophy is still prevalent, but expressions of the behavior are not continual but really just occasional.
Well, the problems I have with most 9 descriptions are 9 as being unaware of self-identity, apathetic, lazy, etc. On the contrary, I am very aware of who I am (though I can sometimes struggle to describe myself to others because they want a simple description, and an accurate description would have to be complex), I am very opinionated most of the time (and do not hesitant to express my opinion), and very self-driven.
I am especially outspoken on social/mental health issues which have affected me or people close to me, but I pretty much state my position logically and emotionally about any issue, regardless of it's potential controversy. I do try to seem benign, have a sense of humor on things, etc., so my delivery does not seem too threatening, and I guess that works, because I very rarely find that anybody has a problem with me.
I will say that if I don't feel qualified to speak on a subject, I will not. If somebody is talking about 17th century art, I don't know anything about that, so I won't say anything. If someone is talking about nearly any sport, I don't really follow that either, so I'm not likely to say much. I only speak if I think I have a perspective that is informed and worth sharing.