Well, maybe is true you are not ill-mannered, and my attitude is really annoying you! But this is really a secondary matter.

It's clear you make serious efforts to think about and this is good.

You say you've read "Load Cases" and this is also good.

Once, Mr Luf said "It is often wise not to argue with people who think they have the answer.... let them test their skills and see what happens,,, it may mean the work will go to those who are more competent in the end."

So forget my recommendations and just go ahead, I’m not saying you are on the wrong way!