I assume you are referring to me, although you could possibly be referring to Ed Edwards, I guess.
However, EdSutton (that's me) never said Jesus read from the LXX. In fact, I specifically said that the text Jesus read from in Lk. 4 did not correspond to either the LXX or any known Hebrew text. I also, from what little I've been able to find out, believe this corresponds exactly with no other known OT translation, as well.
So, "Exactly what unknown text of the synagogue, did Jesus read from and pronounce to be Scripture?" is still the unanswered question.
There seems to be no real doubt as to how the phrase "και ανεστη αναγνωναι" reads, or the meaning, from what I have seen via Thayer, Wigram, Bible Gateway, UBS-2, and MT (Hodges, et.al., - 2). In addition, with the scroll there for examination, I suggest if Jesus did not read from it (although Luke declares that He did), someone likely would have questioned it, unlike when Scripture is merely referenced.
Ed