Progress on latest Delta project

Yesterday I started on lesson 3, the Star Coaster, making good progress today. I have about 1 round left, then blocking. I'm really enjoying learning this new technique, even when I talk to myself "corner blossom", "side blossom", "where does this petal go?" "corner, side, side, corner, I'm here". I love a challenge, and I really like the look. So far I've been working in #10 thread, an average brand. I'm thinking of getting some #20 in a high quality thread, maybe something with a little sheen.