Correct there is a FOC upgrade to the NSII to the XP for the UK forces, only drawback being how long it takes for it to come into effect since Spectrolab , we're told are working lfat out and have spares issues, but this info is a month old and from ECUK.
We don't suffer from parking problems with our NSII, though they did change the handcontroller recently and that I am told is an older version which works different to the new version where one could have a problem parking it.