After the scare I had with an overheating O3 air unit I added some extra holes in the nose of the Nano Goblin and waited for a decent warm day to do a longer duration flight to test if that had resolved the problem.
This year the spring was wet and mild and right at the end the sun started to make itself known. The response form nature was to have a burst of growth and make nearly everywhere a gorgeous vibrant green.
Here's some excerpts from that flight.