quilting and thread bunching
Hi. I'm new to quilting. I just started quilting the layers of a project. I am using one color thread on top and different on the bottom. My thread on the bottom is bunching and pulling through on top layer. I am using default settings for the stitch width. Do you ever need to change that? Or is it likely due to improper bobbin threading or tension? How do you know what tension to use? Thanks.
From - a newby.