Not yet carrying nor training to carry so this doesnt come from any real experience, but as it sits now i dont own any night sights and wont bother adding them (actually bought a PC Shield with FO sights instead of the night sights version). The way i see it, if its that dark that i cant see my sights, i'm not going to see a clear target either. And yes that's where training can/will come into play as well, to work thru those potential situations.

It probably isnt the same, but yet i cant help but think its somewhat similar to when i bowhunted and dusk hit in the woods. Sure my pins could be lit or glowing, but that didnt help in determining the shot placement i needed when i saw a large silhouette step out into the lane i had cleared.