Not to hijack the thread, but this is one of the reasons I'm working on switching over to all MIL/MIL based optics.
While keeping track of 1/4, 1/2, 3/4 MOA isn't THAT hard, it's still one more little thing to keep your head wrapped around.
Working in base-10 units is just easier to deal with... you don't have to think of MILs versus clicks, because converting between them in base 10 just doesn't require any mental energy. 3.1 MILs is 31 clicks, or 3 MILs plus one click -- but really you don't have to think about it, because it's just how we're used to seeing numbers -- dialing 3.1 MILs is just... dialing 3.1 MILs.
I was resistant to MILs for a while, until I stopped trying to think of it in terms of MOA or tying it to Meters or something.
All it is is a ratio, and it works just as well in yards or meters or inches.
1 yard is 1 MIL at 1000 yards.
1 meter is 1 MIL at 1000 meters.
1 inch is 1 inch at 1000 inches
1 yard is 2 MILs at 500 yards.
1 yard is 4 MILs at 250 yards.
Once I stopped trying to make it hard by thinking in terms of MOA, I've found it a much simpler system to work in. This article is what started winning me over:
Using a Mil Based Scope - Easy Transition | Sniper's Hide
It's also nice not having to worry about "true MOA" vs. IPHY.
Please excuse my evangelizing