Formidilio and Blue,
Thanks for the responses.
My personal take on them is the technology just isn't there yet. 20K guys fiddle fugking with brightness settings twice a day on a duty optic just isn't my idea of practical.
You both stating that you'd not run them without co-witnessing irons concerns me as well. Seems they're just not ready.
On the adjusting brighness- do you not adjust the red dot on your carbine?
I wouldn’t run any red dot on any weapon without BUIS. Aimpoints on my carbines have BUIS.