Hans's figures are correct and in line what I've heard from various sources. Adding diamond wires etc to measure fully fitted mast and accept the fact that there is for example +/-1 kg difference between tubes from the baseline then you might get tip weights around 10 kg's with heavy section like in my case. I'm not sure how much pitching this addtional weight would cause but at least if you need to turn the mast pointing to the sky the difference is quite huge at least for uni sailors.

I believe there is no reason to save weight in hulls since just putting carbon mast to most of the current platforms would mean that they need to carry some additional weight. All this has nothing to do with the topic, so sorry for hijack .