I wish I could say it was my idea, but like lots of things I do, I just saw someone else do it. It works great.
The splicing is nice, but I just tie knots. Seems like I'm always breaking off the end of the line one way or another. If it's just a couple knots and a few feet of spectra, I don't care so much. But if it's a pretty set of splices and all stitched and whipped, I want to cry like a school girl got her pony tail pulled when it breaks. LOL!