I'm pretty sure there is a study that is around that showed the higher the Test levels it was correlated with less cancer or disease, I can't remember, was a bunch of health ailments that became far less common with higher test levels. They went in 100ng/dl increments upto 1000ng/dl, from memory.
Crazy labs, I'm happy at 1400ng/dl...IMO what I believe is what a healthy male should be topping out at if you take away the lifestyle and toxins of the 21st century.