This is a great example of Low Stress Training, (LST).
If you look closely, you'll see that the primary tip has been lowered to a point beneath the remainder of the branch with a blue colored wire. The top growth hormone is cut off from the primary and ALL of the secondaries take off like scalded pups for the light.
Using this method of increasing your yeild by multiplying the primary budding sites is an awesome way to increase yeild per/m2.
With the inclusion of one more type of training, you can SERIOUSLY increase your yeild. HST. That's right, hurt me baby! High Stress Training used after LST is a way to totally max out your crop.
Add to this your Halides in veggin and a good supply of HPS for the flowering and you've done everything you could to maximize your crop from the air up.
Now, ya gotta max out the lower regions. Hey! Get your mind back on the weed!
A "splash" resivoir is a must. The return has to be routed so that it dumps radically into the resivoir. This creates lots of splashing and bubbles. Bubbles that are churned into the resivoir contents. Airation of the nutrient solution is absolutly necessary. This method does it perfectly. I've used it for years.
A name brand nutrient solution is one of the things you have to NOT try to save money on. Pay up. It will pay you back ten fold.
Well hey, I didn't mean to write a book. You guys have a good night and lets talk about what I've written here. My goal is to have every person in the entire freakin world growin hydro max bud. Hell man, we'd all be way too wasted to fight. If you look up "Lover-not fighter" in the dictionary, my picture is right there.
Where's the wimin? I'm high, I got that feelin.......
Just kiddin. If anyone ever took me up on it, it'd probly kill me!