I've done 8 mi. rt, both at standard setting @ 22mph and another @ 34mph. Obviously the 34mph will drain the battery faster, but will cover more distance as well. Using the 34mph setting I landed with 13% battery remaining - Using the 22mph setting I landed with 15% remaining. These tests were done on different days with similar wind conditions, but with only a 2% difference between the two, I can't say if it was the speed setting, the wind, or just using a different battery that made the difference. I prefer the 34mph setting just for the bit of extra power if i need it and the reduced time it takes to complete the flight. It goes without saying that I don't do this routinely, but also wanted to see/test the signal quality and range - both of which I found to be outstanding and only limited by your battery.
