http://www.pi-technics.com/

id like to hear from somebody who grows like this the advantages and disadvantages,what can u expect in yeild W-G,

does anybod have any knowledge on the subject

It's called a "Colosseum" and they are one of the most efficient yielding methods... there is no way to get more use from your lighting.

i keep seeing stuff like this pop up because what we are doing is still a growing and expanding business and everyone likes to make money.
BUT I dont have the money or space on my electric bill for something like this.
what i would do is use that as a template, 360 degree grows are THE SHIT.
I am POSITIVE that with enough paper you could design a 360 cage that holds your plants.
Im also a soil guy so my setup would be weird as shit trying to hold up all the weight of the soil and plants. GOOD LUCK!!

Its easy and there are several DIY Colosseums on this site.... it takes some effort but not any more than building a regular grow room with ducting, cooling, lighting... and having shelves/steps already available helps. A soil Colosseum would be heavy, but still take less effort than a hydro setup.

how do they keep their plants from falling under their own weight,does anyone know whats the watt to gram ration

Colloseum growers usually get 1g/watt consistently... sometimes they get up to 1.4g/watt(possibly more, but I've never heard of anyone claiming more). The plants are done as a SoG(in this case a Wall of Green). plants only grow out about 1ft to 1 1/2ft from the shelves. If during flowering the buds become too heavy, there are multiple ways to keep them from snapping or tiping the plants over:

1. Often string(or thread) will be hung from hooks along the ceiling to hold individual branches that're too heavy, to prevent the plant from tipping over. Other growers that don't wish to ruin their ceiling can use either planks laying across the top of shelves or a fence/gridded mesh to hang the strings from.

3. Another easy method is to put a screen such as chicken-wire about 1ft infront of all of the walls to hold the plants up (same as you would with a Scrog to keep the plants from stretching too far, the screen helps support the weight of the plants).

what would u think is better the Colloseum or something like this http://www.omegagarden.com/index.php?content_id=1500

I seen one of those but a dif model on my last trip to the hydroponic spot.,.,it was like $1,50o.,.,he said u needed like 1hundread plants in the thing.,thats way over my legal limit.,.,lol.,.,but im thinking bout it.,would be a effective method.,.,from wat ive read,ect

__________________
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That was a pretty dumb question... that thing is the exact same thing as a Colosseum grow... only instead of growing on all 4 sides, it grows on 2 sides and the top and bottom... it's the exact same thing but tilted on its side.

Colosseum's are better because you can use any method you'd like, soil/DWC/Bubbleponics/Aeroponics/Ebb&Flow... that thing would have to be soil kept in bags or some sort of watertight containers to keep from dripping when they are upside down. Also that thing would waste electricity rotating the plants (for no reason).

The "Produce High Yield Plant" aspect is crap. Gravity plays little part in making plants more "compact". Besides, in some cases having tight internodes restricts bud growth. Also, those plants are upside-down being stretched just as often as they are right-side-up being compacted.

"Benefits over conventional Hydroponics

the cylindrical planting drastically increases yield/space (3-5 times)
feeding and watering management is simple and efficient
ph at the roots remains consistent due to watering design
light in the center means limited waste - it all goes to the growing
Omega Garden's can easily be moved"

I can tell you from the start of that quote.... 1 and 3 are bullshit lies.

Save half the money and just make a Colosseum yourself that is even bigger and can handle whatever size plants you intend to grow.