Look again at Chip's snazzy 3D model (thanks again for this). The red 7 model shows a really skinny space, followed by a medium space, followed by a small space. The blue 6 model shows no space, a big fat space, and a medium space. First of all, I think the blue one needs to be rotated clockwise a bit more and it will match up better than you think (rotate it until you get a little skinny space on top and you shrink that bottom space a bit).
Look at the widest center space on the Chronicles pic. It's wider than your red 7 center space and closer to the width of the widest space on the blue 6. However, the bottom blue 6 space looks too wide, right? Again, this is because you need to rotate the blue model more. Then it will match up better.
I actually think the blue 6 model more closely matches.
Look at the widest center space on the Chronicles pic. It's wider than your red 7 center space and closer to the width of the widest space on the blue 6. However, the bottom blue 6 space looks too wide, right? Again, this is because you need to rotate the blue model more. Then it will match up better.
I actually think the blue 6 model more closely matches.