After failing the 70-680 exam (twice

) and reading the difficulties that other members have encountered, it made me wonder if it's better to take 70-685 before the 70-680. Those of you who have passed both exams, would you recommend this route to others? By comparison, the scope of the 70-685 is smaller and it looks like it doesn't have much to do with configuring Windows Server 2008 R2 as well. I haven't had a chance to dive into the MS Press book for the 685 yet, but would I be wrong to assume that?
Regardless, I plan to pass the 680 before I move on to the 685, but from what I've read on this board, it seems more practical to begin the other way. I just don't want other members to have the same frustrations that I had if the 680 actually
builds on top of the subject material from the 685.