The decision points that will lead me to purchase the Sightron for my next long range rifle will be:
3) Ability to set the power to 18 to make the mils into 2 moa for yote shooting when there is no time to click.
That's how it works with my IOR 3-18X 42mm SFP scope. It doesn't look to be designed this way with Sightron's SIII model. Check out this link: Sightron Riflescopes / Binoculars / Sighting Scopes product pages. SIII Series - SIII SS 6-24x50 LR MD
It shows the mil divisions are a true 3.6" @ 100yds when the scope is set to the maximum power (24X with this model). Changing the power from 24 to 18 will actually increase the spacing between the mil divisions from 3.6" to ~4.8". Not decrease it from 3.6" to 2".
I see some room for improvement to their mild-dot reticle. Would be nice if they come out with an enhanced mil-dot option. Like the IOR or NXS.