Quote by Passionflower
Are you perhaps saying that the increase in radius and volume between shells of lower rvalues over the expected Euclidean values is not due to the fact that space is no longer Euclidean but due to the fact that rulers shrink?

I think these are just two different ways to say the same thing:
 The space in not Euclidean, so rulers measure more radius than expected based on the circumference, so the rulers appear to be shrunk when compared to identical rulers placed around the circumference.
This is equivalent to:
 The spacetime in not Euclidean, so clocks measure less time than expected, so the clocks appear to be slowed down when compared to identical clocks placed around the circumference.