I don't identify much with most general sp descriptions, they're too focused on things that I as a 7 am not interested in, how it fits for me is after my E type. The subtle focus (or not so subtle as it may be) on self is true for me and the look inward not turn to others to solve problems is also quite true. But I don't expect either of those things are contrary to some so or sx doms. For me the sp dom-ness is about my desire for pleasure and positive experiences over so and sx desires.
The write ups here are relatable for me.