>Im very interested in the increase in production. Is there any place I might
>find more info?

I believe the increase production was caused by increased population due to
bees drifting from the light colored hives to dark colored hives  (Note in
the trial all the hives were apparently at one site.)   So painting all
your hives dark simply wont work (unless you have a close neighbor who has
white hives  :)

-Tim