As each pair is designed so that they can work together and in order to minimize the interference with other set of wires inside your cable, Therefore, if you try to untwist all the wires frequently, you would definitely get into trouble. Your patch cable test equipment will also be unable to work properly. Sometimes, people get confused and mess up in terms of handling the cat5 cable properly. While you are installing the cable, do not make a mistake to staple this on the dashboard or bottom of your house wall.