I have good reason to believe an XHP70.2 can exceed 9000 lumens.
We also have to remember that Jason's L6 is sliced. My understanding is that slicing can knock off as much as 30% lumens, which would easily drop 8000 to 5600. As for the lumen tubes, there are so many variables involved that I'm not sure how we can ever know whose tubes are measuring accurately. I appreciate the efforts to make your tube more consistent with other tubes Dale, whether that's more accurate or not.