Just to be sure, I don't plan on buying a Flextight X5 to help you find a profile of Fuji Pro 400h to use with your X5 . . .
I am suggesting that since the X5 is a premium product, that maybe you can you get/buy film profiles from where you bought it.
If that is not the case, then does the X5 system have provisions to create your own profiles - or have existing ones that you can modify? For instance, if you have the profile for the previously released Fuji NPH 400 - which I understand is what was replaced by Fuji Pro 400h then that may be a good starting point for creating a new profile. Or maybe it is even good enough?