The other reason to put on this chart is to show some simple new script I placed on indicator. Sometimes I find Slow less reliable and giving some false or confusing signals on the 4 Hrs time frame, so I try to replace it with this combo. Upper panel is 71 period vs its 76 period , the lower panel is 91 period vs its 58 period .
Basic rule is that you can take trade signals in a direction when both ROC/EMA stays same way and you have a Tenkan/Kijun cross too. You can still decide wether you take weak Tenkan/Kijun signals, or if you wait for further confirmation or stronger signal, like a Kumo breakout. Still, if you had long, when ROCs crossed their EMAs and Tenkan crossed back below Kijun, it was a signal for decreasing momentum and to reduce/close position.
The importance of the "zero" line is the same, when is below the momentum is increasing , when it is above, then increasing .
This simple strategy is being tested, I hope it will give even better indication about momentum changes than Slow itself.
Don't forget, the main trading strategy will be still based on system.