Performed a trainer ride today using Kicker connected to MBP, and doing a custom workout (erg mode). The distance and speed recorded on 5X was significantly lower then the zwift recorded fit file.
Zwift connected to Kickr via BT: distance 24.46, avg speed 21.4 mph, avg power 194
5X connected to Kickr via ant+ for power and cadence/speed: distance 14.39, avg speed 13 mph, avg power 199
Typically my Edge 820 will record a slightly lower distance/speed compared to zwift fit file (which I assume reflects the virtual world elevation changes on zwift), but never this significant.
BTW, when connecting 5X to sensors, there is no option for "smart trainer", just cadence/speed or power.
Am I missing something?