Red Nr. 8. Dynamic move to the top, gets harder the shorter you are. Definitely not a 6a for shorties, but nice and flowy, good landing. Leaving the side pull out and jumping from the under cling makes it 6c. ( -> ‚Et qu'ça Saute!‘)
Rain sucks, but broken holds suck even more. Remember, never climb on wet rock in Fontainebleau.
The sandstone becomes brittle, and pulling on it will ruin classic problems. Drying it doesn't help, because it's still wet and weak inside.
All you can do is wait for better conditions.