DBCherry - tried the Y cables on another AM Receiver with exactly the same result. I've given up trying to figure it out, however the problem could have led to un-explained crashes, eh? The USER would possibly build the same way again and at odd moments the problem would develop with disastrous (and unexplained) results. The weird thing was that using either Y simply as an extension (the other Y leg left unloaded) resulted (on occasion) no aileron actuation. I did not try the Y on any other function than ailerons - maybe try that later, eh? As I said - could have been a bear to determine the cause of a crash.