Double Bogey:
If you read carefully, the Type Certificate Data Sheet, which is what is referred to in the Certificate of Airworthiness, only contains limitations. Unless your country is different, there is no requirement to follow the procedures in the flight manual (either normal or emergency procedures).
In some countries, there may be other legislation that dictates using an approved checklist (in the USA, Part 135, for example). But that checklist doesn't have to be from the flight manual.
You are at liberty to make up your own checklists - my advice is to make sure you take into account the various Flight Manual Supplements that are fitted to
the aircraft you're flying.
Your other comments about common sense are perfectly correct.