To make things clear, and to ensure we are in safe limits, and my background is physicist, I have calculated boat weight using archimede law, meaning boat weights as much as displaced water. Got 12.8 T, using some hull shape approximations and excel and measurements of hull immersion in totally flat water. We travel light and have not too many gadgets. Boat performs quite well compared to other cat brands.?
So, that lift must have been way off, as calculation error is less than 1 T.?
I can now get pretty exact weight any time using only hull immersion measurement .