Oh, I have been wanting fic that explores Hogwarts during the time that Snape is Headmaster. Snape/Draco is a pairing I really like and need to read/write more of. I was, however, glad of the ending this took. It's so contrary to what I expected, but I think realistic and believable for it.
Much as I love fanon!Draco, this version of Draco is one of the most canonically correct I've read. I felt like I was reading an excerpt straight from DH (you know, with an added Andrew and blowjobs.)
The Legilimency techniques you described were really interesting, btw. Is it sad that if theory existed, I'd go read it? Oh, I love Draco's fascination with reading other people's minds. He's lost so much power in his situation due to Voldemort, that it's entirely powerful for him to go find it elsewhere.