Inspire 1 Pro X5R and/vs XT Firmware

[shv2sail]

I recently picked up an Inspire 1 which I've manually upgraded to a Pro (motor/ESC/Prop swap out). I have an X5R and XT camera and about to get the firmware of all to the known working 1.8 version. However, how does doing an update/downgrade with the X5R firmware .bin file effect the XT (or vice versa)? Or, will the X5R firmware package work for the XT, or not effect it?

Thanks-