By best thread for hand quilting, I mean the one gives you the best relief carving effect yet easy to stitch and pull through quilts. Such thread has the following 3 characters in 1:
1. Thin: Thin thread is easy to pull through quilt works. Equally important is its less in total "bulk" - the total length of x the thickness of thread) in comparison to its thicker peers. The less the bulk of thread going into a quilt, the quilt will be less stiff in preserving its unique characters as textile art.
2. Slipery: It is easier to pull a slipery thread through your work therefore less pintching pain under your thumb as a result of gripping needle too hard to pull a ungassed thread. The gassed thread has the "hair" burned off which will reduce tangling or knotting to make your hand quilting experience much closer than that in heaven.
3. Stiff: Actually selection of the right quilting thread is a wrestle of power between the thread and quilt work you make. You must make sure the thread is stiffer than a combination of the fabrics and batting in your quilt work. When a quiltwork is stronger, the thread will bent with it, resulting in your stitches look shallow or crunched up if the thread is pulled too tight. When the thread is stiffer than a quiltwork, the fabrics and batting will bent with the thread, leaving the thread relaxed, the quilt looking dimensional but wrickless.
Summary: When choosing thread for hand quilting, the thinner, the better. When choosing stiffness, it must be stronger than the quiltwork. Please note, don't use thickness to substitude stiffness! Thick and stiff is not as good as thin and stiff. When there is no stiffer thread, change your batting and fabrics to softer ones. No matter what thread you choose, keep it slipery! The one on our site is the best for hand quilting because it has all above 3 in 1! That is why I recommend it because that is what I use!