Increase the EMA time span used, to the point that it's now decreased sensitivity most closely mimics the movements and deviations of the 12 day SMA. (TADA!!!)
No, no TADA here!! Once you have an EMA that moves more or less with the a 12 day SMA, you get somewhere in the 50 day range, and the overall movement is reduced a lot, compared to the SMA. And if you just search for a minimal overal difference, the EMA would react too fast.
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