Okay group. Calling all wizards. Been having trouble with fraying thread breaks. Lots of them. Inspected everything on the thread path, new needle/roller. Was inspecting the hook and as I run my finger across it I find what may be a teeny tiny burr. It also seems sharper than I recall. Checked an older hook that I have for a spare and it is not as sharp. Also no burr feeling. Was thinking about running some 600 grit across this hook point. What you uns think? Herb Royal Embroidery