While Bjoern is in Hawaii, I used the flight simulator.

I got sufficient good flies to do 4 experiments. That’s really encouraging that the majority of the flies survived, kept their hook and flew for more than the 20 minutes required!

The other side of the coin is that I did not had any learning effect, and fly do not even avoid the punished side during the training phases: it seems something’s wrong with the laser. I bet that there is a very important trick I don’t know about the laser alignment…

but Everything will work!