I am ready to get my torso pieces fit and assembled.  Here are some pictures of pieces on me.  I am looking for the following: 1. Is the top of the ab plate supposed to align to top of the kidney plate? 2. I have seen some build videos where the back plate ends at the top of the kidney plate.  Is this the case?  If so, what do I need to do? 3. Item 2 kind of plays into next question, that the kidney plate looks tall?  Is it sitting at correct height?   4. Where should the top of the butt