Can I flash US Firmware on the Canadian model to get the newest updates?

Long story short, our Canadian Idol 3's are beholden to carrier for updates. Can I safely flash a US 'backup' of the stock software from the backup thread on my Canadian model and then get updates without my carrier being involved?

I have a backup of my stock (Bell) firmware from TWRP, so I'm not too worried about doing anything irreperable...

Thanks!