Well i tried the servo's on all posible voltage 4.8-5.9-6.0-7.4 V and on all Voltage nothing changed.
Tried, a powerbox switch 5.9 and the powerbox switch 7.4, the Jeti switch,Emcotec miniDPSI on 5.9V and 7.2V, lipo direct in to receiver, different receiver, different transmitter(new out the box) different receiver mode's, different battery packs, long cables short cables, ferrite cores you name it, tried it all and 0 succes...... unfortunally.....
The only thing that kinda worked eventually is sending an e-mail to McGreggor and they told me "we never tested our servo's with Futaba" for what it's worth.....
This hobby is so much fun
Cheers,
Ed