I tried flat thread - it's thicker than the ribbon thread I usually use, so I noticed the difference in thickness. It felt like a pretty standard thread - I don't know if I can speak to any natural benefits. Since it's a bit thicker than the tape, I think it offers more space between the teeth. I was overall happy with this yarn, I just don't know if I would say it offers a noticeable difference for me other than the thickness/texture.
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