I am in dire need of help! I recently experienced the dreaded situation where the hopping foot gets sewn into the quilt top and ever since I extricated myself I have had stitch issues. I experience thread nests on the backing side while at the same time I see the top thread breaks, though the machine somehow continues to sew, leaving half inch to inch long gaps in the stitching.
I have a bobbin thread gauge that I use religiously. I have cleaned and cleaned and cleaned the bobbin case and bobbin area on the machine. I have rethreaded the top thread three times, and cleaned the tension disks as part of the third rethread. My frame and tracks are surgically immaculate. I use Superior threads, currently Omni on top and Bottom Line pre-wound in the bobbin case. I'm at my wits end! Has anyone gone through this? Can the HQ Experts please advise???