I'm a rookie new grower sure but ive studied hard and with the right strains people pull 3+ a light all the time. With the glue I don't know but it looks to me like dans is giving it one hell of a go.
Getting 3lbs or 48oz per light is not normal for me no matter what I'm growing. I think most of us run 4 per light. Getting 8oz from ea plant doesn't happen often. When it does that's 32oz per light.. I have never hit 10+oz per plant.