No, I am not a NASA researcher by any means but I have been working with a NASA research contractor since early this year. They have 3 or 4 GT’s now in various tints and setups, including the first XHP70.2 prototype I made where they requested a 3000k dedomed XHP70.2 be installed for maximum real world throw.

There is a quote in the old GT thread where they measured the GT with official measurement gear and gave it a thumbs up.