If you're still with me on the double twill blocks, here's the current variation. I've been thinking about this a lot. If you simply flip the weave structures horizontally in the liftplan, the twill will slant the opposite way. However, the light/dark warp order will also be switched. So in order to keep that order the same, you must do two things: first flip the weave horizontally, then wrap the weave one thread to right or left (we're talking one pixel in Photoshop). Then all will be well.
Here's the current table runner in double twill, now with twill lines going in both directions.
And up close, so you can see the twill lines (click to enlarge):
Changing directions again...if you're depressed about the news these days, this bumper sticker won't help, but it kind of fits in with my current philosophy of taking the long view. Think Big History.