Switching between observation channels


I know it is not possible to receive from both observation channels at the same time. 

I plan to use the ObsRx1 for calibration and once calibration is done start to receive signal from ObsRx2 while both are using sniffer PLL at the same frequencies. The received signals should be the same at both ObsRx1 and ObsRx2 without a random phase shift after switching. Based on MYKONOS_setObsRxPathSource function, it looks like the switching process it quite time consuming. 

Would you please let me know if this switching can cause a random delay between the observation channels? 

Is there other simpler/quicker switching between the channels?