Glued up one lower winglet with Sikaflex Urethane Bond, to see how it cured in the supporting blocks. If it is all permanently re-assembled into a block I can start again. I can't start again with the upper winglet, if one of them fails I will have to get more foam.
Tried to assemble the supporting foam blocks for the upper winglets, which had fallen apart, but got a bit muddled.
Tried to fire up the hot wire saw to trim the tip blocks, no soup. Fiddled, pulled it apart. No soup.