Proof of foam flotation

Hi everyone

I call this my "Proof of foam" entry. I bought a sheet of 50mm foam with a volume of 144 Kg's and I have less than 25% left so I easily have my 75 Kg's of flotation, probably more like 95-100 Kg's. It's spread from behind the main bulkhead (seen in the picture reversed) to down near the rudder post.

P.S. I just weighed it and it's 20Kg's at this stage.