At the time, the RAF SH boys were not allowed to do low NVG routes at night unless daylight recced before in daylight which was a bit gay. I assume that has now changed?
No because you may well encounter obstacles that are not marked on your map - wind farm anemometers are a favourite.
The obstacle plane value has recently moved up from 200' to 300' because there are so many unmarked/un-notamed obstacles in the UK.
The CAT 2 NVG we used to teach at Middle Wallop was down to GL and that always required a day recce - so it seems the RAF and the AAC have the same idea.
Gay? no! Professional? we like to think so