Okay !!!

Here i am.

So far, i placed 2 half superchunks in the rear corners. Isover 38 (AFR 15Kg / Density 38kg/m3)

And in the front, i placed 2 superchunks made of recycled cotton/polyester (AFR supposed 1,5Kg/ Density 20kg/m3) and added in front of them 120mm slats with 1mm slits and i almost finished to seal all their boundaries.

And here is what i get...

i think i missed something between 130 and 230 and beyond 12K.

Well... the noob i am is lost at sea...