I fly stunt kites and had a need for keeping the lines untangled, easy to to take up and pay out. We use plastic hoops or a new one, to me, called a Yoyo by Shanti kits. http://shantikites.com/single-line-flying/shanti-hoops-yoyo-winders/ Of course I have a 40M dipole wound on one for portable use. --- 73 de W3AB/GEO WA2LSI, KE6RJW, W7B, AAR9AG