Brother pq1500
I am ready to start my first quilting on this machine.
Details: Fabrics are 100% cotton back and front, batting is cotton warm and white.
I have tried quilting a few small sandwiches using the same fabric/batting as the quilt. Everything is fine. However, when I start on the quilt, there is a longer stitch every 4 or 5 stitches. I am using 100% cotton thread (gutermann) and a #75 schmetz needle( also tried a #90) and a Brother walking foot that came with machine. There quilt is supported well so I know that's not the problem. I changed a few things...stitch length, presser foot tension etc but no matter what I do there is that longer stitch. It seems like it 'catches' a bit after a few stitches but I can't figure out why.
Are there little secrets to getting the tension correct? what thread and needle gives you the best results?
Should I change to a cotton thread.
Thanks for any help.