The approach
Start with the right question.
Control the fall, feel bottom or cover, then vary cadence before switching tackle.
In practice
Make it useful on the water.
A complete jig test includes head weight, body, line, rod and retrieve.
Keep learning
Connect the dots.
Use this guide as a starting point, then compare it with the water you're fishing, the tackle you're using, and your own observations. Good fishing knowledge grows through real practice.