I didn't carry it in vain, because to my pleasant surprise, the lower holds were perfectly dry and even in very good conditions. The top was soaking wet, but at least I could start trying the moves from the start up to the last harder move of "Les Fossoyeurs Insoumis (gauche)". I spent about two hours of climbing, trying the lower section and made very good progress. I fell off the last harder move a couple of times, but that was okay, because with a soaking wet top, I didn't see myself finishing it anyway. At least I had been able to climb and I was determined to come back as soon it was less wet.
Yesterday, Sunday, it rained all day long, only to stop at around 22h. It gave me at least a bit of hope for today.
This morning, it looked pretty dry compared to yesterday and after some house chores, I went back to try "Les Fossoyeurs Insoumis (gauche)". The top was dry enough now, but unfortunately the lower holds were not in as good conditions as Saturday. Still remembering the moves from two days ago, I progressed quickly again and started getting close quickly. Unfortunately after an unexpected slip on one my better attempts, I fell hard, with my ribcage right onto my bigger wooden brush that was standing up straight in one of my shoes. I could feel the brush go in between my ribs and screamed out from the pain I was struck with. It hurt like crazy and I had a hard time breathing, making me fear that I might have broken a rib. Being so close to sending, I wasn't ready to give up though and kept on trying. Despite the pain, climbing went okay, but after each attempt, in need for air, I wasn't able to breathe deeply because of the pain. After a short break, I went for it again and somehow executed everything perfectly and stuck the last hard move. I struggled my way through to the top, and couldn't even feel happy. Instead, being out of breath made me want to breathe deeply, which I couldn't due to the pain. The joy came later.
Still now it's hurting a lot when I breathe, I'm surely in for a rough night.
Fontainebleau - Rocher Saint-Germain Centre - Les Fossoyeurs Insoumis (gauche) 7C+(7C)