We ran out of time on this one. We established the idea, tried it a second time, changed arm position and then saw some lights approaching. I knew it was a police man. We were in a city graveyard after dark and although he was understanding he made us leave. Too bad because the fog began to break up as we moved toward town and the graveyard gave us this great spot.
Karl sat in one place for about 30 seconds and I positioned myself "behind" him with two flashes pounding him like mad. As you can see, I hit the tree to the left a bit and although I aimed for one to the right a couple of times, you can't see it.