Silly me first tried the organic weaving cotton that had worked before. It was too thin and sparse looking. Two strands of perle was too heavy. I did have some rayon gimp that was perfect in every way - weight, sheen, body - except that it was red. So I got out the dyepot and attempted an overdye. Either I had misread my burn test for fibre content, or my dyes were too old and weak, but it didn't work. I just got a slightly darker red.
After a brief episode of self-flaggellation that resulted in nothing more than lost time and lowered morale, I went back to the thread bin and pulled out my single precious 10 m. spool of heavy brown silk. To conserve the thread, I couched it down with sewing cotton. Whaddya know? It seems to work!
I have sent James in to town to Stitcher's Muse, where the lovely and helpful owner Dione has stashed away her last two spools of Cinnamon Brown silk for me. Fie on the expense! My time is worth it, not to mention my mental health.
Full speed ahead!