I have 4 of these scopes on Tikka and Sako rifles now... None of them are really ever "turned down" all the way to 2.5x. They live their lives at 4ish to 8ish power, I don't even really look at what they're "zoomed to".
95+% of kills on coyotes and rabbits I treat them like a fixed power scope. From 10 yards to 700ish yards I never mess with "zoom" or parallax. Put the parallax at 200 and leave it alone. As an example with proof of shots, I used one of these scopes for the cold bore challenge... Shots on 10" white gong and 10" sharpie drawn circles on cardboard. Longest was 920 yards, never touched parallax once.
For kills past 700 yards on varmints I tend to zoom in and land somewhere in the 10-12ish range when I look, again, never touching parallax. When shooting targets and steel it's nice to have the 15 power for very long shots.
The only time I'd really ever have the scope zoomed down to 2.5x is purely stalking woods in thick cover, the reticle is perfectly usable in these conditions, including well before or past legal big game shooting light.
I guess what I'm rambling about is, the scope and reticle is usable on all "zoom" ranges from 10 yard shots in the woods in low light, to cranking it to 15 power for 1,200+ yard kills on varmints and target shooting with heavy mirage. You'll be hard pressed to find a better general hunting and shooting scope/reticle than this one, unless you want to spend nearly 3 times the price.
I can try to get some more low light reticle images tomorrow morning when I'm out shooting/practicing in the mountains. I'll try to sneak in some sight pictures on desert big horns, deer, and nasty little dark colored javelina if they stand still long enough (not likely).
Mine will be MIL, of course, but will be a very close representation of the MOA reticle as well.