Use this method to lock in the ends from the Colour B Stripes and make sure the stripes are joggles.
Similar to how a Magic Knot is created for yarn ends, tie an overhand knot using the left tail around the right tail. Adjust and make sure the knot sits flush to the surface of the fabric, be mindful not to over-tighten as it will distort the patterning on the right side of the fabric. Then, tie an overhand knot using the right tail around the left tail and adjust in the same manner.
Unlike Magic Knot, do not pull on the tails to bring the knots together instead keep the two knots tied apart.
Weave in the Colour B tails under the Colour B floats to make sure the tails are not visible from the right side of the fabric.
You can find Valerie's videotutorial here.