Thanks for the corrected info...I'd based the red/green on the performance of my own ITT gen3 unit which is several years old, and how it sees green vs red. I shouldn't have assumed that modern gear is the same, or that the laser is the same as other green light. I wonder if maybe a little bit of the IR is making it through the blocking filter, and that's one reason it works so well? Just a guess here. I'll now have to test a friend's green laser with my ITT unit.