Please see the superior threads video, or order the free dvd...at least it was free a few weeks ago.....It is not a good idea to use serger thread for regular sewing or piecing. Serger thread, first of all is more linty....can cause more lint build up in your machine....but it is not strong for anything that will be worn or used as a quilt for warmth.... the reason it is not strong is because in serging it needs to be thinner to lessen the bulk on serged seams. It is thin, also because there is a straight stitch, then an overcast to lock the seam. If the stitched thread is broken the overcast will hold the seam together somewhat.....serger thread is a single ply thread that is not strong. Do a test of pulling apart with the serger thread versus cotton or poly....If serger thread was OK for regular piecing, they would not make multiple ply threads. Serger thread is for the serger. It is not strong. If your quilts are not made to last a long time....I suppose you could use it....however, do you really want your beautiful work to fall apart after a lot of washing.....