Revisiting your requests...
I did the best I could today with available lighting. It wasn't as bright as a FL day can be due to the clouds, but it also wasn't as rainy as it was earlier in the day. As you know, trying to make this look "real" with a camera is tricky, so I did the best I could. It made matters more complicated that while taking the picture, the sun/glare was in my eyes so I couldn't even see the red dot on my view finder (even though it's actually there in the picture). Anywho, here's what I was able to capture today while the sun was out as much as it was going to be:
This is setting 7 (I'm pretty sure) which is the max. However, it's slightly brighter in real life than it appears here. If I had to equate it to an Aimpoint intensity, I'd say a two clicks above what you'd probably choose to zero with on an Aimpoint. Very usable, but not the blazing hot brightness of Krypton's sun.
You can definitely see the 1 and 1/2 mil hashes. However, I was shooting on a black Dirty Bird 12" grid target, so the hashes would sometimes disappear on the black background. If I adjusted a bit, I could make what I needed to use, usable (I was zeroing, so I needed to make accurate measurements). To reiterate what I've said earlier, the donut has the potential to get in the way on smaller targets. I was shooting 4 MOA (4" @ 100y) sections of the target, and once the zero was refined, I could keep rounds at 2 MOA or better. However, quartering the target was harder with the donut in the way than a more standard TMR/Mildot type reticle. Was it doable? Absolutely, and consistently, but took a little extra concentration. On a 8" target at 400y (previously), I found the same issue. Certainly doable, but took an extra second or so to make sure you had good sight alignment.
One last thought to add... I've shot my NF 2.5-10x24 quite a bit, and as UWone points out, it's an unforgiving scope, but I'm pretty comfortable with it. I find the NF to be as usable if not a little more than the MK6 on eye relief, unless you have the stock in the perfect position. Since I moved the optic (MK6) over to a new rifle today, I didn't have a spare ACS to use (which is what I've used the MK6 on before and what I use for my NF). As a result, eye position was slightly off (using a SOPMOD), even though I know the LOP position to make it equal to the ACS. Lots of words to say that now I have an ACS on this rifle to help, but the MK6 is very demanding at 6x. Again, usable, but just something to be aware of. But same goes for the NF. Like anything, practice with either will make it easier.