Rottweiler - the difference in capability between mortal (non-NVG) mountains and NVG mountains is enormous, I have done both and wouldn't go back to mortal night flying. Stornoway do go into the mountains at night but with no NVG making them a lot braver than me
Bigtop - how am I misinformed? The 139 does not have a night wet winching capability at the moment and won't have for a while yet. The 101 is probably fine over-water as long as you don't mind the downwash (how many small vessels, surfers, kids on lilos or free swimmers/drowners have you done in it)? It is less suitable for cliffstickers, cragfast climbers or confined winching areas.