Originally Posted by
Prism99
You should machine wind the bobbin but, because polyester thread has more stretch than cotton thread, you want to wind the bobbin slowly to reduce how much it stretches while being wound.
Thank you for all the answers. Now I just need to figure out how to slow down the bobbin winder on a newer machine. It doesn't seem to be affected by the speed control for sewing. The winder is on or it is off. But I'll figure something. Thank you again.