 Seams have a tendency to pucker and pull; a smaller stitch length and properly balanced tensions can minimize this, though the experience of the sewer will affect the finished result as well.Pins can make holes and marks in polyester charmeuse so it is very important to use proper, sharp dressmaker's pins with a smooth, not abrupt, taper to the point.For greater ease of sewing, a sizing product can be sprayed on before cutting and washed out after the garment is completed.