radio works great for my other 5 vehicles, and works with the broken down one again with my last and final RX i had. :P
So hopefully its not an issue with the trigger

Your neutral range idea Bill, that sounds promising. I know for a fact I have been messing with the neutral range settings on my ESCs (and radio), as well as trying all sorts of brake settings, as my finger doesnt know how to use breaks, lol.
So these ESC's i bet have lower neutral settings than factory default.

But that also doesnt explain the cutting in and out and losing signal.
But maybe its just the one that loses signal, and the other two wont bind due to neutral setting.
Ill give it try tomorrow and see what I come up with.

What about reverse polarity?
Im super careful with this, as I once fried an ESC, so I look really close at the plug for the - before plugging in the ESC.
But out of curiosity, are these like an ESC and you can fry them that way?
I have a servo that has all black wires and no indication of - and I plugged that in the wrong way, and it didnt blow.