1. I findout by upper band of BB - lower band of BB (I called "Aline")
2. I created of Aline (I called Bline)
3. I created the special line is "Cline" from Aline - Bline
4. I created 0 line " Baseline "
G-BBvB is the very good indicator to detect low to begin the = Buy signal
Now I can't find the sell signal form indicator. I try backtest sell at Cline cross zeroline but it not work.
I'll develop "G" indicator for free .