Ross, David is correct, you seem to be wasting Tx channels doing jobs that the Weatronic has been designed to do. Ask why it has 22 outputs when no tx has 22 channels to drive them individually! Only transmit one elevator, one aileron, one flap and so on, and tell the Wea Rx to map it to however many sockets you need to drive. Any adjustments to centring and travel in order to make the control surfaces match one another can be done at the Rx by GigaControl. You only need 9 Tx channels to do all that you need, though I prefer to keep the nose steering on a separate channel as it is much easier to centre the steering from the tx than through the rx, and that would take you up to 10 channels, well within your limit of 12. you just have to accept that taking a laptop to the field to make adjustments is one of the downsides, however I have found that if properly set up at the workshop then all field adjustments (other than altering the failsafe) can be done at the Tx.

Harry