I'd have to say start with a simple book like SS1 section, and even I would recommend any basic strat book before 7CSFA. I found that if I didn't read a book that wasn't as advanced first, i wouldn't be able to appreciate and understand 7CSFA as much as I do now.
I'm looking to learn Stud, at least in Stud Hi I'm totally lost right now. Any recommendations on good books to check out?
From what I've seen, your competition is equally as lost during razz. You seem to have some handle on it, but there is a lot of easy pickins during that rotation.