“but mesora should be respected, and just disacrding it is a dangerous game.”
I don’t think anyone’s disagreeing with that. No one was saying that anyone should “just discard it”. The OP thought about it carefully, asked his father’s permission, and only changed minhagim because based on what he’s learned he felt it made sense in this instance.
Obviously he didn’t do it so lightly and did find it a difficult move to make which is why he posted here.