I made a QAYG and i was afraid of joining bulky seems so i joined all of my blocks with sashing. Rather than adding sashing on the back and hand stitching, i used a solid piece and did SITD to join the two layers. Unfortunately my sashing wasn't the right size and now theres a void in between all of the blocks. It makes it easier to fold the quilt exactly the same each time and all of the blocks are very stiff. It looks nice except where its joined. The cat loves it.