Originally, yes, to the nth degree!
But as the years' passed, I tweaked various recipes, more to MY liking!
Have cooked some so often, I know them off by heart!
When entertaining much, back in the day, I started trawling through my many Recipe Books, at minus one month, to prepare a Dinner Menu. I just LOVED looking through those books!
I kept a book with Guests' Names, Date of Dinner, Menu, & what Wines were served, & any food dislikes, or Dietary requirements of attendees'. That way, as usually had same friends' to Dinner, many times, they were NEVER served the same Menu items!