Hi Cat, as seen in the video I had to jumpstart it because I could not reach both starting holds at once. I am 160 cm and my armspan is 155 cm. Friction was good that day, so maybe that helps?
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.