This is my new carbon fiber unit that I will use for testing and experimenting sensors and position hold systems, as a part of my ongoing arduino project. This is the maiden of this unit. After seeing that it flies in the first couple of seconds, I felt comfortable enough to immediately test the GPS. I tweaked the code earlier to make the GPS to refresh the position hold position as the point where the stick is released. In the old version, when the stick was released, the GPS would take the unit where the GPS hold was originally initiated. However, with the change, I could successfully re-assign the new position hold coordinates as the point where the stick is released. This will be very useful in many projects. I call it the crawl mode. thx