My fault. I should have added some caveats.

The Overlay Images subfolder contains 162 overlays. And since Keyhole does not allow more than one overlay to be active at a time, do *not* try to check the box either next to the group folder or any State folder. You have to expand the folders and activate the overlays one at a time.

I've noticed that while the positional accuracy is pretty good overall, the viewpoint is a little wonky in some NEXRAD cases. I generated most of the code from some very crufty visual basic scripts, so I'll fix this pretty soon and post an update.