Now I was able to fibre glass the tip joint as per manual. I had to wait to get the temperature above 20deg. First I glassed the bottom joint as the wing is still upside-down. Some more filling and glassing jobs around the wing used the most of the day. Filling in the aileron sides as they are not the same angle on both sides, just a detail but it annoys me, I measured 2deg from the trailing edge and 3mm gap between flap side and wing tip.
