I have my setup with a NetReturn Pro, Monster Mat and the Garmin R10 behind it all .... But I also have a tri-pod with an iPad attached and a golf club stand that can just hold the few blubs I am using and be right at arms reach. But I was wondering since this reads everything in front of it and these items are no more than about a foot away from where I place the ball and hit if they would cause the R10 to function differently and not read properly? It seems fine and it doesn't miss a beat when I hit the ball, just was wondering if maybe it really is skewing the numbers at all and I don't know it cause of this. Thanks