Hi Guys (and especially Guy), like many others my friends and I have recently purchased 2.4G Spektrum sets, Dx5E and AR500 receivers. The first person to try to use his can get it to bind just fine using the updated instructions regarding releasing the Trainer switch immediately the LED's come on and we repeated the process for another receiver however after plugging in his servos there was no reaction from them to any movement of any of the Tx controls. This boat has Acoms servos fitted. We then tried another boat with a HiTech servo and a HiTech sail winch, again no reactions. At a later time he tried Spektrum servos and both worked. Is it possible that some servos have different connections or polarity (and if so how do we change the connections) or do these sets only work with newer types or digital servos? Any suggestions welcome. Thanks, Ian.