They come from man hour savings from generating a topography of the mine and stockpiles. Our mining customers have found our product gives results within 1.1% of the accuracy of laser scanning the mine and is more accurate than the results from traditional methodology performed by an average ~3 person survey crew. It requires only a single person to capture the mine, and customers get the data back in a single day rather than 3 to 4 days later. Thus, they can capture the mine topography far more inexpensively and far for frequently than they could previously.