Matters of tolerance my friend. Its like this, if you go down the hallway at the company I work and ask the spec of a Laser's output power in a certain configurations to 10 engineers, including myself, you will get at least 5 different answers. Why, because the supplier has a spec. It can't be as hardcore as 87% solid. It has to be +/- something. Also, each one of us has our own way of testing. Our own level of perfection. So sooner or later, we adopt a number. Its not out of the question for specs to not match in big companies. As far as staying away from Leupold. Why would I? They have done the job for me for 20 years. Its pretty adopted in the shooting industry that they are a first rate scope compared to the European scopes. So what is the spec tolerance for that Nikon. I know from Experience that it can't be 95% solid. Have you measured it?