and will the channel mixing work on the DSM receivers too?

thx

the DX3R has reverse tech, meaning all spektrum rx from the past will bind to it.

PERFECT, thanks.

can you use the AUX on the previous DSM receiver as a third channel?

The aux is the third channel.

I think there is one receiver exception for the DX3R, the SR3000HRS for the Futaba 3PK HRS.

does the dx3r do model match with DSM1 receivers?

That's true, but then again the only thing that will work with the HRS receiver is the HRS module, so that's not much of a difference from the past

Yes, ModelMatch is a function of the radio, not receivers.

Okay, one more question :0)

Can you set your servo normal or reverse for each master slave in the channel mixing?