so many people read off the paper when they put it down, for all the peeps I've had in my Studio, only one person really memorizes his shit before he even comes over. other than that, all the other folks do it. I do it too, BUt i write my shit right there, and start practicing, then I drop it, By the time I drop it, I have most of it memorized, just gotta use the sheet as a reference, in case I forget a line here and there(Cuz I only rap high)