My issue is that lots of time I see guys are blaming the radio too quickly. IMO if you are having an issue with radio A and it has not been in a crash or had the TX dropped, simply going to radio B is not going to fix the problem. Personally I think that Spektrum was marketed poorly. The whole interference is a thing of the past was very mis-leading. IMO what it did was get people to be careless with installation. I have been flying a DX7 for 4 years without a single issue. I have used the TX with an AR 9100 RX, AR 7000 and AR 6000. The commonalities is that all have a satalite RX, all were placed away from noise sources, all antennas were horizontal and 90 degrees from one another and all were run on 6V with enough capacity for the application. We seem to have lost the common rules for radio installation.