The waterfall model works quite nice!
I tried to erase the spray mount can and realised that only a thin strip of it was being deleted (press play)
then i tried with something thinner and it disappears completely!!
i think (pretty sure) that the width of the cloaked area has to do with the thickness of the container. So i will make 2 new pairs of containers of other proportions and test those out to draw some conclusions.
ok laterz! gonna show this to javier now