Your conclusion that adding one math step gets a more accurate result is not valid in each case, so to make that generalization is not accurate.
Why don’t you make another thread with your detailed analysis and calculations, see how many people answer it, then we compare notes?
If you don’t want to answer the question because you feel it’s all inaccurate and a waste of your time, that’s fine I have no issues with that.
But claiming to have a superior method while knocking others down in a condescending manner- well not many people appreciate that.