Whether you are a calligrapher or just someone who wants a better grip on their tools, wrapping the grip of your nib holder or other tool may give you the comfort and control you’re looking for.
Something I forgot to mention in the video: try to keep your freshly wrapped grips from resting against each other. Until they have a chance to relax or get dusty or be handled, it’s possible for them to stick to each other. Usually you can just pull them apart, but occasionally you’ll have to re-wrap. Such is life.