You'll find the procedure is what most will recommend, which comes from the book and of course (what you're alluding to, I assume) practical experience. Sometimes there's a "work around", but most of the time, it's just pretty cut and dry. For example, removing the drive is basic stuff and everyone does it the same way, assuming they want it to come out clean, easily and without breaking stuff. The book's procedures will keep you from forgetting a bolt or clamp or something, that can hang you in the actual process.