$1911

Mine were stiff and "wavy" because of how tight I tied my knots. Lately I've been tying them rather loosey-goosey which makes for much softer and floppier bracelets.

You have to find the perfect balance between tightness and looseness. If it is too tight they will get stiff and start curving up. If they are too loose there can be holes and it wont look good.