How do I use the “differential feed” on my serger?
Your manual will explain differential feed in detail but here is a quick way to remember. –If you are serging a knit and it is stretching, waving, rippling as you serge –stretch the number, that is increase the differential feed to 1.5 or 2. If you are sewing fabrics that are bunching and puckering –“shorten” or decrease the differential feed number to 0.7 or 0.5.
