Man, spoilers much? So much of the beauty of book four was having that click in my brain. There's a reason Erikson doesn't use his real name through dead house gates....
Not sure if Lemmy supports comment spoilers but that would have been the time to use them, might not be too late to prevent others from getting spoiled.
I'm currently on Children of Dune. I've listened to the core six a few times on audio book but figured I'd actually put the time into reading them. Its honestly pretty close to a first time experience. There was so many little things sprinkled throughout that I totally missed in audio book.