I drew a grid on a solid fat quarter, layered with batting and batting, and basted.
At the top of each rectangle, I wrote the thread type and weight, using a Pigma pen.
My threads used (Left to Right): YLI Soft Touch bobbin thread, YLI Silk, Aurifil Mako, PolyX, YLI Cotton Machine Quilting, King Tut, Signature, Sulky 12 wt.
Then. I FMQ-ed a wavy line, added loops, stippling, and finally an echo shape to see how the thread looked in a variety of stitch designs. I repeated for ...