The results are in. I setup a spot to measure the rods with my dial gauge and the results are pretty bad.
Of the 8mm rods 2 were .003" (0.0762mm) off, one was .004" (0.1016mm) off, and one was .006" (0.1524mm) off. Of the two 6mm rods one was less than .001 (0.0254mm) off and one was .008" (0.2032mm) off.
I'm pretty sure these were damaged in shipping.