The template set and instructions I have suggest the shortcut of sewing one long seam to join several rounds in one go. kind of like sewing a sine curve. Is that what you mean? I tried but was not coordinated enough to manage so many joints and did better just joining rings one at a time. I would love suggestions to make the DWR. I've only done a sampler before tackling a full quilt and the point where the large center tucks into where the two arches meet wants to pucker, disappear, or seem not fully sewn.
It did occur to me when wrestling with those curves that I learned to sew making clothing and have inset multiple sleeves which is curve sewing but the DWR seems harder somehow.