I actually tried that path at your suggestion last time, and it's currently so disappointing that the NPCs do not even remember properly Kane's actions. As in, when I got the first "secret sub" scene with Alessandra after I got Kane promoted to K5, she even told Kane stuff like "did you know some of the lesser men in this program have their dicks locked in chastity?".
'Yeah, as a matter of fact I do know Alessandra, and so do you, as yesterday I was a K4 and you stepped on my caged dick and had me worship your pussy while you were giving shocks to Zach and Jack - surely you must remember m'lady?"
My Kane must've been befuddled at Alessandra's (and Celeste's) sudden memory loss, but seriously, the secret sub scene in chapter 6 does not take into account whatsoever if you entered the facility as a K4 or a K5 and all of Alessandra and Celeste's lines are written as if you were always a K5, which is quite annoyuing and immersion-breaking, so hopefully the "full sub on the dom paths" concept gets a little more love and attention from Tess in the coming updates.