Rifle Scopes Aim point Micro T2 brightness settings

I have the same issue with two different Aimpoint Micros. One is a T-2 and another is H-1. In near total darkness I can pick up one dot on setting 3, and the other on setting 4.
 
My t2’s dot isn’t visible until setting 7 or 8. I would have figured the dot would start to become visible on setting 5 and up. I basically only have 4 usable setting 8-12 (7 Is barely visible in a dark room). Still an awesome red dot though.
 
My t2’s dot isn’t visible until setting 7 or 8. I would have figured the dot would start to become visible on setting 5 and up. I basically only have 4 usable setting 8-12 (7 Is barely visible in a dark room). Still an awesome red dot though.
Just got mine. Same thing. I don't expect to see 1-4 without NV, but don't see 5 or 6 even in pitch black.