V2 Configuration on Additional Micro SD cards used..?

Is it necessary to have the V2 configuration on each 32GB Micro SD card inserted into the V2 Camera.?
(Or, in other words.)
If once the V2 Camera is configured via a micro SD card, may a blank 32GB Micro SD card be inserted and have the V2 Camera operate and record properly.....? Post being powered "OFF" for several weeks.?
Also, I have had no success with the V2 recording in US values (IE: MPG and PSI.) I have these channels default to MPH and PSI in the Dash config, but I can only get KPH and KPA to record. Are there recommendation on how to remedy this?
Thanks
Gary
(Or, in other words.)
If once the V2 Camera is configured via a micro SD card, may a blank 32GB Micro SD card be inserted and have the V2 Camera operate and record properly.....? Post being powered "OFF" for several weeks.?
Also, I have had no success with the V2 recording in US values (IE: MPG and PSI.) I have these channels default to MPH and PSI in the Dash config, but I can only get KPH and KPA to record. Are there recommendation on how to remedy this?
Thanks
Gary