RE: Interesting problem ...input invited
Same kind of thing happened with my brother's plane several years ago. He had a 72mhz that also locked up the elevator like yours. It was before the 2.4 systems came out, but we changed everything else that we could think of and never did get it fixed. I have thought about that problem a few times over the years and also thought that it was the radio, but nowafter reading about how you changed the radio-I am completely stumped.