Used 2 SMAs (8, 21). At strong hours (8, 12 and others), you can place a trade on the MAs cross over. You can change the MAs periods to seek for better results. Using ADX lines crossover is very good to confirm the strong move too.
Always compare USD Index against USD pairs to determine trading opportunities when symmetry occurs. Symmetry UP for USD as primary currency (left symbol of the pair). Symmetry DOWN when USD is the secondary currency.
Use chart structures when the symmetry really started.
I would appreciate any comments on that!!! :)