Hi all there use to be a sinker made that you could put on your line without cutting the line, I think it was called "Jawa Sinker" but not sure. I also think that they were made in Australia saw a few in a tackle shop some years ago and were possibly made in New Zealand. What I know of them was they were a bean shape with a s sort of channel in them that you put the line in. Any info. on them would be great.