What configurations should be used when center pull or backfeeding techniques are employed for pulling in cables?

Using figure 8's is appropriate for configurations when employing center pull or backfeeding techniques for pulling in cables. This method effectively manages the cable's tension and reduces the risk of kinks or twists during the pulling process.

The figure 8 configuration helps prevent tangling and allows the cable to be pulled smoothly from the center of the spool or coil. It provides a balanced approach that distributes the load evenly, ensuring that the cable is fed out in a controlled manner. This technique assists in maintaining the integrity of the cable by minimizing stress points and facilitating easier maneuvering through conduits or other tight spaces.

Other options, while they may be used in various contexts, do not provide the same level of effectiveness in managing the specific challenges associated with backfeeding and center pull methods. Each of these alternatives carries a higher risk of complications, such as tangling or uneven pulling, making figure 8's the optimal choice in this scenario.