Originally Posted by
JSF-TC
If you run the 900 directly into the CBxxx 3rd Rx port, you lose any gyro benefit at switch over to 900. The REX and connected R3/RSW provide primary and backup 2.4 RX's, and the Cortex Pro will provide switching to the 900 should it need to.
Note I have not yet installed a 900, so have not fully proven the strategy, but that's my understanding of how it should work.
Paul
This true, but the 900 will be there in the unlikely event of the Cortex Pro failing.