ORIGINAL: mr_matt
It looks like S Bus is DESIGNED to use multiple receivers. The real question I have is how (and what) do the S Bus receiver communicate with each other, as opposed to how they drive the servos (still important mind you)
If the receivers form some sort of ad hoc network, then they can decide which of them is receiving the best RF signal and they both use that signal (sound familiar?)
Imagine, one RX in the tail driving 8 servos, another RX in the nose driving a different 8 servos. Meanwhile behind the scenes, the 2 receivers are comparing who has the best signal from the TX and sharing it with the other. The signals to the servos are unaffected, they still come from the receiver they are hooked to.
SBUS is not that clever, SBUS II may have more features. The Sbus link simply sends out 25 bytes every 14ms at 100kbs. One header byte the rest are 11 bit sequences in order from 1 to 18 plus some flags for failsafe etc. The servo data is not even byte aligned. Servos are set to look at a specific set of 11bit data. No addresses as in a real network. No checksum or CRC.