I just connected to a Canadian VPN and had no problem getting CA content. I also have the option to not have a static IP address so I can have a different IP address but, in the same region everytime I log in. I have also never tried to connect to a US VPN while in the UK so I cannot comment on that. I have also never connected to a UK VPN while in the US. I had never had a reason to even connect to a different country’s VPN until now just to see if it works. I can’t get Downton Abby on US Netflix but as soon as I logout, change VPN’s and log back in I can find it in my search and watch it.
I normally only use a VPN for certain things and that is not very often.