Hello, all!
I have the Pro1 working nicely on Canada's Freedom Mobile network. For those interested, I had to manually select the home network, "Freedom," whilst in a home network service area, then manually select the roaming network, "Nationwide," whilst outside the home network. After rebooting, the phone remembers the networks, switches automatically and properly identifies the roaming network as a roaming network so that Android's "Roaming Data" setting can be used to control data (Internet and MMS) when outside the home network.
I am having a problem getting VoWiFi working.