As the weaving commences, the warp threads will shorten on the loom and the weaver will need to adjust the tension periodically. As the inkle band progresses, it will also get closer to the heddles. The weaver will also need to advance the warp thread along the bottom of the loom to open up new weaving space. Helene Bress recommends loosening the tension when you are ready to advance the warp. Once you have done so, tighten the tension again and resume your weaving.