How do I use thread that is on a serger cone for my Kenmore 385.19365? Can I re-wind it onto a regular spool? If so, are there secrets to keeping a filament thread winding properly? Since the large cone would not fit on my normal bobbin-winding spool pin, how/where could this be done? I would guess I would have to hold it and do it VERY slowly. Advice, please

Sewing Machines - Yamata - FY900 Mechanical Sewing Machine