It looks like the option to use other online or local computers to download Windows Updates has finally kicked in. The download of 10130 on my first system proceeded at about 12-14 Mbps.

After the first system completed its download, I started the second system. It showed a download of 36.6 Mbps even while my Internet speed is 15 Mbps. Since the first system was showing a 19 Mbps UPLOAD rate, I have to assume the second system was using the first system to get the download.

I didn't take long at 36.6 Mbps to download the 10130 build..