Not sure I understand your question. Appliqued blocks can be assembled w/ qayg techniques. If your asking about appliqueing after you have quilted. The hot temps and pressing isn't great for your batting (especially if it is a poly blend) if you are hand appliqueing that will be tricky w/ the extra bulk. If you are machine sewing that can get dicey keeping your edge w/ the extra bulk, much harder to keep a clean look.