Originally Posted by Faster
Can also visualize the core-less cover rolling up flat on the furling drum - compact and perhaps less potential for overrides?!?
This is the primary reason for doing it. The core-less cover rolls up quite flat, and takes up quite a bit less space. It also furls much more neatly than the whole line does. The primary rigger who told me about this trick says it also allows you to go up a line size or so, making the furling line much more hand-friendly, than the thinner lines would be.