Each of us is different but the fact is if we look for imperfections in something we will usually find them. There is no denying that the artifacts you describe seem to be prevalent in the majority of Surefire's headlamps. However, just like you can't train yourself to ignore them an equal number of people can condition themselves to ignore what you find an irritation. The saddest part is that 'if' the artifacts weren't there the Surefire range of headlamps would be some of the best available on the market. As it stands they have been left to stagnate and the issues of beam artifacts ignored so that the headlamps have become something of a niche market for Surefire which is a real shame.
Good points. I agree. It's disappointing that they obviously put a huge amount of effort and attention into the build quality, engineering, user interface and functionality and they got SO close to a STELLAR product, but still these issues exist (and continue to exist) on a high-end product put out by a company that prides itself on its premium, high-quality products.