Well, I had been plannig some iceboat sailing, but no ice so I started to build the mast and 300g glass was the only thing at home.
But that is not a problem, the glass is at 45 deg to the woodfibres and there will just be a little bit less on the outside. I also used Spruce instead of WRC for this one for the front part, the reinforcements on the inside will be WRC, and for the F16 spar all wood will be WRC.
the halves together are about 12kg so I am only about half way to target so far (25kg)