Hi Iang Not sure if you're still around but I have just discovered Renko charts and concur with you 100%. Also I figured out that a 5ema with stochastic is a method that was perfectly good. Never believed that the TDI. . .interesting. I wrote some principles and would love to share.... Renko Rules Down principles; Following a green streak up of minute 3 candles and ending above the 5 ema we watch for a white candle to form over the 5 ema and determine whether stochastics has crossed over (taking into account angle of descent and near or over the 80 line). Cease goes over green candle...