Se is force, a polr Se would make the use of force very sporadic, yet very improper when it happens, in my opinion, it's the achilles' heel, it can go pretty bad. also I associate introversion/extroversion to leves of activity in the outside world, and to me you seem pretty "out there", doing things, having projects, entertaining with people for the sake of conversation, also you seem more open to accept/discuss other points of views than a typical Ti would do by Ti default.
well, this is my impression, LII-Ne/ ILE/ ILI are all very similar, even EII, I think you've pondered about all of these types before, so maybe LII-Ne is your best fit for real