May 17/19. In an effort to get caught up with 'behind the scenes' work, from May 24 to 28 I will be not be picking up emails. Orders made during that time will be mailed out May 29th. Thank you for your understanding :-) Susan
Why leave some slack thread in your sashiko stitching?
You are putting a lot of thick sashiko thread between the warp and weft threads of the fabric as you stitch. This is going to make the fabric bunch up as the stitching gets more dense. It has too, the width of that thread is forcing the threads of the fabric to push up against each other closer and closer as your stitching progresses.