The following details are the review of my
Gann's Law of Vibration System method which are given in the blog, the following calculations is as an illustrative purpose. Basically it explains how the system performing without any confused (really I faced the situation) indicators, oscillators, crossovers, close inside and outside, overbought-oversold... bla...bla....
"Mathematical science, which is the only real science that the entire civilized world has agreed upon, furnishes unmistakable proof of history repeating itself and shows that the cycle theory, or harmonic analysis, is the only thing that we can rely upon to ascertain the future."
As far as my knowledge in GANN, Gann not used overbought and oversold terms in his trading...! Instead of that may be he uses natural law of time cycles and seasonal time cycles to predict the same. For Price support and resistance he uses Gann Wheel, law of Vibration System supplemented with his % methods. It's purely my assumption because he never revealed what system he uses.