I think you may be making this more complicated for yourself then it needs to be man, it sounds like you're doing fine. Don't worry about your nutrients so much, like others have said a one or two part nutrient will do almost if not just as well as any expensive nutrient line. I used to sell nutrients and hydro gear and trust me, you're getting ripped off by using advanced. After this cycle you might want to look at Botanicare, or some organice stuff that you can mix and match.
Have you done a lot of research into fertilizer? It's always good to completely understand what your plant is doing and how they react to different chemicals you give them