Re: MOA reticle versus Mildot...
My US Optics SN-3 has an MOA reticle, which is actually a Shooter's MOA reticle, and the adjustments are in Shooter's MOA, as well. I actually like it better than a "True MOA" reticle, as it simplifies the ranging formula.
Also- although the Mildot Master is designed to work in both Mils and "True MOA"... I made a new mark on the Mildot Master, which makes it work with "Shooter's MOA", as well as function as a straight slide rule- multiply, divide, etc- I don't even need my calculator, now..... although I still carry it.