He suffers the old fashioned way and doesn't drink water for days as opposed to letting lasix do all the work. Dorian did the same thing and it equals a super shredded, grainy look. Shawn and Kev used to do it too. Not to say that all the aforementioned athletes didn't use some form of diurhetic (sp?), but they didn't rely on it as heavily as others did.
Plus, branch trains very heavy and started on the basics... especially the squat.