The second part to your question concerning the cord stretching out of shape is most likely from not pre-stretching the cord before you started stringing on your gemstone chips. Cut a piece of cord then hold an end in each hand, draw your hands outward, stretching the cord; repeat this motion at least three times. Pre-stretching helps ensure the cord won't break or stretch out after you've finished your design.
Another good idea when working with Powercord is to place a small amount of baby powder in your hand then run the cut length of cording through the powder. By applying a fine coating of baby powder to the cording you will make it less ''sticky'' and therefore easier to string on your chips or beads.
- Kristal Wick, Designer, Author, Jewelry Making Expert and Swarovski Ambassador