These twills are identical.
So either, I'm about to make a breakthrough on this point-twill-block thing, or wasting a lot of time in my drug-induced, hayfever-ridden (read: blocked nose) Friday afternoon strangeness. Most probably the latter.
OK, really off the computer now; I have to have a lie down, then start measuring the cotton warp for the wall. Have a good weekend, everybody, and sorry if you have one more day at work.