It works best for me in hot water, july. Works on largemouth and smallmouth. Just snap the rod tip so it darts about 6 inches to a foot. Dragonfly larvae are jet propelled little buggers that scoot along the bottom, they are a HUGE food source for bass, catfish, and big panfish. When the fish are in the weeds it does not work as well because you just get a jig full of crap every cast, but when they are on sand or mud it works great.
You are trying to mimic this
Here is how they scoot. https://www.youtube.com/watch?v=9xSe3NtS06g
As you can see, the partial stick mimics the food almost perfectly. And not many people have thought of it (I didnt even know about the article until now.. I thought it was a “secret”)