I've rarely had a problem with C&C. That said: thread has a twist and is spooled to be used the "right" direction. If your thread seems to shred, try knotting the other end so you are pulling the opposite direction. Also, thread has a shelf life. JoAnns is great for buying huge quantities and putting it on sale BECAUSE it is getting old and frail. Manufacturers should really put an expiration date on thread.