Weylin, looking good. It will help people to understand character tillering if they see your unbraced profile. From what I remember you had allot of dips and dives in the back.
Buckey, I think what you are seeing is a natural dip in the back. If you go back to page one you'll see the major dip.
This is a great example of character tillering. Often people will ruin a bow by trying to get the whole limb looking perfect and forget to keep in mind the original profile. The important thing is to get all the wood bending the same. So if it is not flat to start with. you will not have a consistant arc but rather a mimic of the natural profile being bent.