I remember something vaguely similar from someone before I put my variation in.
223 is my dedicated night time tool (well will be once i can find and afford a dedicated sight.
Every time i hear good stuff about something then others say it's a disappointment. (N750, N750A, LRF870, X-Sight, and Drone - although the DP is now being upgraded to a newer version due out soon.
The Photon XT is great but needs much more magnification but i'm not into trying to double something that should have been built right in the first place.