Having driven enough for the day, I didn't go far and revisited the nearby Rocher du Guetteur where I wanted to try "Backdraft" again. I had already tried this several times, but never found a method that worked for me to reach the lip of the roof.
This time though, I paid attention to every detail and took my time to work out the move to the lip. As soon as I got the hang of that move, I knew that it was possible, setup the camera and topped it right away.
Fontainebleau - Rocher du Guetteur - Backdraft 7B(7A+)
Next, I took my time to work out the moves of the right exit, which didn't take very long, but wasn't all too convenient. Nevertheless, I managed to top "Backdraft (droite)" immediately after pressing record again on the camera. I felt on fire.
Fontainebleau - Rocher du Guetteur - Backdraft (droite) 7B+