The author of this tutorial is not Le Vapelier, but VAP'ED.
In our opinion, it is impossible to do better on the subject!
Please see his channel ( https://www.youtube.com/channel/UC8-C8HGOtdZq33cWnyYb6Bg ) and above all don't forget to subscribe to it.
If you do not know it, you will discover a very great video reviewer!
Congratulations on this great job, which we could only share.