As I noted, all a person needs to do is disable the telemetry and the hand wringing is no longer needed. I'll use it while practicing because knowing what my batteries are doing during actual flight is valuable information. I cannot see how that can in any way provide an unfair advantage during a contest, but the rules are clear. BTW, Spektrum now has a RX with a built in 3 axis gyro. I have no idea if it can be disabled.