Tying quilts is an old method of quilting that has been around for years. Growing up, that is all that I can remember having on our beds. However, most of them were made out of flannel and no batting was used. Even in your older quilts, after many washings, the cotton batting bunched up and made hard lumps in the quilts. Quilting with a needle and thread stopped a lot of that. Along with the poly batting. Your quilt should be just fine. Be sure and post when done.