Most days I am unable to hand sew the binding on a quilt for over 15 min. at a time due to thumb problems. I have been trying to sew the binding on by machine, but cannot get it right. The front looks great, but the stitches miss in several places on the back. Am I leaving out a step? Do I need to measure and fold the binding over in a certain way to make sure the stitches are hitting the right spot on the back? It goes great for a few inches, then
. Need some words of wisdom, please!