I quilted my quilt for class and I free motioned it. I noticed tonight while working on the binding that some of the stitches don't look like they are very secure in the back. Like the are kinda barley looped through the fabric. Does that make any sense? Like they are being held on by a tiny piece of thread in between stitches. Is this because I was using poly thread? This didn't happen with the cotton. should I try to take out the quilting? Will I have to re-do the binding too if i re-do the quilting?