One more aspect of the March is the glare cutting ability of the glass. When looking into the sun, something in the coatings on the glass eliminates it allowing a shot where my NXS couldn't. Other have mentioned it but it has happened to me two times where I was able to take a shot that the NF glass couldn't.
I noticed this last fall. My buddy only had a vortex, but he couldn't see anything with the glare and I had no problem picking out the deer.
idcwby