Rule No. 1: use it in trending market Rule No. 2: obserbe the tops and bottoms Rule No. 3: if you found the fish head, entry when reversing Rule No. 4: If you missed the fish head but noticed the reversing, entry when breaking Rule No. 5: fish tail forming, exit then Rule No. 6: Stick to Rule No. 1-5
Of course, lots of other rules, but as long as we can identify each phase of the trend, we'll get an opportunity to profit!