This chart also shows that TRSI solves this issues (upper indicator pair). So, time to throw away your . It has been fooling you all along.
FYI, this asymmetry is obvious in longer term charts (wide price ranges).
I kept this script simple for use as a reference. I will update my candle indicator to implement this fix in addition to some other advanced features. So stay tuned :)
I included an option to display standard as well for verifying the equation I used. What you see in textbooks is a twisted version of the same equation.
Thanks @DennisLeeBTC for the name suggestion.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.