Anglers often look only for fish arches. What many do not know is that about 50% of the fish can not be displayed on the sonar. Overlapping sound waves, certain bottom structures or wrong settings influence their unerring location.

We have summarized our deep  knowledge in 90 lessons. You learn how to locate big fish.

As a second result, our students have greatly reduced the number of days they don’t catch no fish at all.