I have a Euro-pro 543dx (aka babylock prestige) and can NOT for the life of me avoid heavy feathering. I know light feathering is a good thing, but this is terrible looking.
I've tried adjusting the tension on my overlock threads, adjusting stitch length, adjusting the stretchiness. Nothing seems to really work (Adjusting the overlock thread tension helps some, but then it pulls on the straight stitch and makes it abnormal)
I hope this is making some sort of sense. I share images if that helps.
Thank you!