I had my first flight after completing the DBS Mod to my spare transmitter. It was in no way a long distance flight, but was a test at my house. I flew past the property line behind my house at a distance of about 700', it was over a hill and trees with no way to really be LOS and able to aim the transmitter toward the quad. Then I flew over my neighbors house and across the road 1,138' from the home-point with a line of trees between me and the quad. I would not have been able to fly as far as I did without the mod. I would always loose signal behind my house at about 550' and never tried to cross the road as I was sure I would loose signal due to the trees blocking the signal.