David, I've been chewing on this since reading your initial post. I have run into this question while working Binche. I think there are a couple of ways to look at it. First, an extra twist does define the separate sections of Half-stitch. If you have a gimp in the mix, then it makes sense to make the half-stitch, go through the gimp, and then add the extra twist so that the threads are once again in half-stitch position.
However, I have found that in Binche, when I have long stretches of half-stitch, punctuated by gimps, the more pressing need is to be certain that the same bobbin is leading through all of this, so that giant holes don't appear when tensioning "downstream", so to speak. In cases like this, I may even add two twists. Clay Sent from my iPad - To unsubscribe send email to [email protected] containing the line: unsubscribe lace [email protected]. For help, write to [email protected]. Photo site: http://www.flickr.com/photos/lacemaker/sets/
