Quote Originally Posted by onimaru55 View Post
The spine dictates the edge bevels. If the edge is straight then the spine is straight. You can't have one without the other.
I guess if there were higher resolution pics, you can probably see what I meant. There is no absolute straight line or absolute flat surface. And most importantly, the spine and the edge are in a 3d space, both ain't straight do not mean you cannot have a flat surface go through both of the edge and the spine.