I use this jighead for rubber worms, rubber crawdads etc. Worm hooks and bullet weights tend to spin. You may not even notice it with braided line, but it’s spinning your line and can cause rod tangles which are very frustrating. And when you get a hit the worm slides down. With this jighead I made myself, it doesn’t spin. The worm doesn’t slide down because of the coil wire I put on.