Yep - Can't believe you said that TC. Wearing goggles most definitely puts strain on the neck, it doesn't matter how much you 'balance' them - If the operator doesn't have his head and neck in the vertical plane i.e.; spends time peering out of the window its going to get sore.... Not sure about how the CAAs limits of seven hours flying in ten is going to stack up either when every minute is apparently going to be flown on NVG? Five sounds better but it probably more of a H&S issue.
Ariston also has a point - How does the pilot stow the goggles?