Sonar can help find fish but it wont help you catch them. If its cheating then we all should get our money back because it doesnt translate to immediate fishing success. Most water is full of fish and you will see them on sonar. You still have to position the boat, make the cast and correct presentation, blah blah blah the list goes on. I cant count how many times ive seen fish on sonar that wouldn't bite. I was the one being cheated in those scenarios