With a Wingstabi on classic firmware you can map the input and outputs as you desire, so you could use the Mlink Wingstabi in conjunction with the normal receiver (you would just need to provide power to both) configure your system as follows
Wingstabi 7 channel - Mlink receiver
Inputs from the Tx (I.e. assign servo channels on the Tx as follows)
Channel 1 - Ailerons
Channel 2 - Elevator
Channel 3 - Rudder
Channel 4 - Flap
Channel 8 - Gyro mode
Channel 9 - Chute
Then map the wingstabi outputs to
Channels 1 & 5 - Ailerons
Channel 2 - Elevator
Channel 3 - Rudder
Channels 4 & 6 - Flaps
Channel 7 - Chute
Then use a 2nd standard 7 channel Rx as follows
Inputs from the Tx
Channel 5 - throttle
Channel 6 - tow coupling
Channel 7 - lights
As you can't assign the channels on a standard receiver so you just have to use the same output channels.
With the classic firmware you only need one input signal/channel from the Tx for the ailerons and flaps (and elevator if using dual elevator servos) and you can then operate and set up dual ailerons/flaps and any differential/mixing on the Wingstabi rather than at the Tx.
Note you can't use your standard 7 channel receiver with the non-Mlink Wingstabi as the 7 channel receivers will only output 7 channels on the SXRL link.
