You all like pics, right? Here are some close-ups of the brace/rim intersection points:
A: this shot shows how the neck block extension comes up to the upper transverse brace. I've marked the centerline on both the soundboard and the neck block.
B: Here's an overhead of the tail block. Note the centerline on the block and soundboard.
C: Close up of the intersection point of the upper arm of the X brace and upper transverse brace on the treble side of the body:
D: Close up of the UTB and upper X brace arm on the bass side of the body. Having those walnut side braces intersect at that point was pure coincidence. I'm not sure if it's a good thing or a bad thing.
E: Close up of the lower X brace arm on the treble side of the body:
F: Close up of the lower X brace arm on the bass side of the body. Again, the intersection of the side braces with the X brace was a complete coincidence:
Things may still be off a hair so I'll look again once I have the brace ends whittled down a little more.