I am intrigued by the 39 period STO but I think my method will do much better. It all depends on your philosophy. If your not into a high frequency of trading then the 39 STO will be better for you. I did check it out on some stocks and some of the signals were late but still I think I could improve upon it by adding the RSI but not the OBV. I never use Volume in any of my chart reading. I do like OBV but to me Volume is not something I personally can grasp with consistency. But that's just me.