So much effort goes into figuring out the "target" species in each body of water. Certain patterns stay consistent, others don't. What type of fish live there, what sizes are they, is there a group of larger ones than the ones you are on. What are they eating and when. Structure, weather, temps, cover, and type of water.
There is always something to learn which is why i love it. Great days are for the camera. Bad days are great for the brain.