I did the engine oil leak test. It was first flight after repair engine. The owner of LZDV airport told me: You are crazy! You did the engine test and you used it at full throttle with 45°climbing...
How else could I do the test?
You can see at 8:40 he had a problem with katabatic wind what mixed to "normal" wind. he did good decision and went around. First climbing surprised him and next he didnt use a full throttle for take off.
This is the video of my friend. He has very slow one seat trike, then he did it early morning. After his return he sat to other trike as cameraman. Here is what he saw there.