I have my RTH altitude setting set to 40 meters, which is approximately 131 feet. I initiated a RTH from my controller today when I was at an altitude of 147 feet and about 1000 feet away. The quad stayed at 147 feet on its way back until it was overhead, then proceeded to land. Should it not have descended to 131 feet on its way back? Or does it only climb to the specified RTH altitude if it is below it when initiated?