I go about 6 inches or so past the end of the tags. Are you anchoring yourfinished end, before you start the second end? I use twist ties to hold the new loop together at the end of my twists, then i bursh out my strings to make sure they are all the same length and to get some twist out of them. Then I start twisting my second end. Be sure to keep your twists the same direction, or you will have them untwisting while you try to lengthen or shorten them.