'marvels at being called upon within a group including typology experts elf and speed'
First of all, don't take my judgment above your own, since you know yourself best.
I would think you could be social first, seeing how you take an active influence in forum discussions and seriously seem to care about the opinions of others, evidenced by how you always talk about your type, and what other people think about it, not to mention all the other topics you bring into play for other people to muse on. (I classify myself as a social first since I like to take global dynamics into perspective, how my ideas shape the world and the people around me, curiosity for what other people's opinions are, as well as a drive for discovery).
Secondly, you would certainly not be a sexual last in my eyes, since you seem to like to not only bring the group into play, but you also seem to take genuine care and understanding of people at the individual level, not to mention your open love of um, sex, as well as a bit more emotionality to your personality (perhaps a strong sx fix could mislead people into typing you as an ENFP?).
Well, based on the above deductions, it would seem you are self-preservation last, as you seem to be like I said rather expressive and not secretive or security oriented, but I guess that side of you should you possess it may be harder to externally see, and for all I know, you may take great pleasure in comforts, as well as being good at looking after yourself, but from what I've seen, those are not qualities you have displayed in an observable way.
So ya, my conclusion for your stacking would be so/sx (lot's of people say I'm a different type than what's in my type-me box, mbti, enneagram and instincts altogether, so my opinion of myself or even anyone else for that matter stands on rather shaky grounds).
Of course, only you can decide what type you believe yourself to be, and if I misrepresented the way in which you see yourself, just point out and correct my mistakes in a quote or something.
