Can you image early morning. Say not long after sunrise. Before the land heats up. Or you could try about 3 or 4 pm. That is when the heating is at its most stable. I found those two times work best for me.
About 8AM would be the earliest for me due to the trees around the eastern perimeter, but thanks Paul. I'll try as early as possible next time. The afternoon is definitely out (more freaking trees lol).