“he did what i said he did”
No, he did not. Which is what you are not willing to accept because you refuse to doubt yourself. I don’t really care what beliefs you have until you are making false claims about someone who is much greater in learning and especially when what you are saying is based on something he never said.
“Even if it’s a small part of his methods, how am i not justified in saying that that particular method is not mesorah-based and i believe it to be an error?”
Because you never have the anivus to actually say that!!. Besides being incorrect, you have never lowered your self to say those words. You repeatedly say ‘he erred’ an anav or baal middos says, “if I am understanding correctly, I believe it to be an error”. We have done this many times and you have always been incapable or unwilling to display this anivus. That should worry you. That is a dreadful character trait. If it is not just an online persona and it really is yours than you should be alerted and alarmed.