Finally , ı wanted to build an indicator for relation between them.
It calculates the percentage of difference between price and and estimates deviation from the main trend.
Formula = (price-dema)/price*100
There is some parameters;
Length is length of , ı think 50 is good enough,
there is upper and lower band for DPD Score .
You can change it based on volatilities of your pairs to find an optima.
and use it to be sure about your entry point.
I will developed and combine DPD with some other indicators and build strategies with it.
You can be part of that , I am waiting for your feedback.
Stay in Touch :)