I don't know what brand machine you have but have you looked in the manual as to using embroidery to quilt. Now I am confused as to what you mean by embroidery. Are you talking about using decorative stitches or are you talking about using your embroidery arm to place portions of the quilt in the hoop and using a quilting design as embroidery? I have used different weights of thread to do embroidery in the hoop using my embroidery arm and have not changed tension.