I'd guess you need to check the grade of the satin you have selected. I made a first communion dress from the crepe variety and it did slide around a lot but then I've been used to working with cottons and, once I got into the routine of handling the fabric, it wasn't quite so bad. Then a bridesmaid dress. Glad I went back to the shelves and got a better grade of bridal satin. No problem with that one. And, yes, there is a direction to satin so factor in yardage and layout, if you are making a garment from it.