Cordite, If you can actually see the difference in brightness of 95% tranmission and 90%, then you have super human eyes.

If a scope is adjusted properly for focus, I don't think you could tell the difference without extended use. I have did this test several times. Took someone to Bass Pro, adjusted the focus (something most owners don't do), and held them up to their eyes to see if they can tell the difference. Usually not.

I am in the business, or kinda now and used to be of buying lenses for goverment purposes. I have toured all kinds of index matching coating facilities and manufacturing facilities from japan to Austria. Those names you are throwing out and places are not easy to get. In fact, most are not public knowledge but not hidden either. In fact you almost have to be in the industry to know these things.

Yes, several of these companies buy thier lenses from several sources, but the parts are spec'd. Its very common to outsource things like this. It sure doesn't mean they are worse or better. I can buy optics that have a 30db back reflection from a famous german or austrian company. They will be twice as cheap as ones with 60db Back reflection. They will make them as cheap or expensive as I want them. It all depends how much money I want to spend for them on the quality process. Japan definately has some top notch plants for index matching and lenses.

Lets see you live in Colorado. Hmmm.