Great link Warrior!

The Fonz knows what he's on about!
At least the results of my tinkering seem to support his conclusions.

What I will suggest to you, is full spectral control.
Fixed ratio arrays are fine, once you match the ratio to the strain.
To grow a variety of strains you need to vary the ratio of different wavelengths.
Got bucks?
Buy dimmers.
No can?
Build pure color arrays and adjust their heights above the canopy to change color ratios.

Didn't jump right in and kibbutz straight away because I haven't been experimenting much lately.
Have a friend with a medical condition that will require a large quantity of RSO.
I'll be in production mode for the next few months.
No got time to play for a while.

You lot carry on.
Fonzerelli has a good handle on this, and the budget to to experiment.
I'll jus' sit in da back of the class and take notes.

Mahalo nui,

Weezard