You're absolutely right, I didn't think about that. However, I did perform the test(s) from Sacramento, CA to a server in Newark, New Jersey -- a distance of 2,

You're absolutely right, I didn't think about that. However, I did perform the test(s) from Sacramento, CA to a server in Newark, New Jersey -- a distance of 2,810 miles according to Google. I was fairly careful with the test(s), and the 10ms difference seemed to be consistent. So that's odd. I need to investigate that further.