I'm just curious, when you changed the Spektrum radios did you change the reciever as well? Just a thought but try a different reciever or wait just thought of it did you setup a profile on the DX3R pro you used because before I setup and did up a proper profile on my DX3S it didn't save the profile settings on the transmitter either so when I turned it off it reset all my trims, endpoints etc. just thought that with a more complex controller it may need to be saved to the transmitter to keep it the way it was before turning the transmitter off. I'm rambling but it's worth a look at and hope it helps you.