Nightforce has reliability issues? That seems to be stretching it quite a bit. I also have 13 NF scopes and never had a single issue.
March 10-60 I owned was a good deal darker than a Nightforce.
Don't lump them all together, just because they are from the same company. I had one NXS fail and it was repaired and shot a record, the rest of the NXS's were trouble free. Br's were without issues also, but the comps were an an other story, 4 out of 4 would not hold point of impact. They also lie about fixing them and the power is over rated compared to an 42 power NXS or the NXS is under rated the comp. has to be near 50 to equal a NXS at 42. The story they tell you that your base isn't bedded and that your rings aren't any good, if you are content with a quarter to a half inch gun they are fine.... Jim