Unless you have great airflow.. great lighting, great spacing, great NUTRIENT program.. all working to accomodate LARGE plants.. then it is a waste to grow plants over 12 inches before you flower them...

a 1000 watt bulb over 6-10 plants that are flowered at 12 inches tall (10+ nodes) will produce the same amount of BUD as plants flowered at 24 inches tall under identical GROW conditions..

the 24 inch plants will take longer to grow, require more nutrients and make a huge gangly MESS...

iloveyou

and if the 24 inch plants do produce more weight, it will be minimal and it will consist of small popcorn buds... the time you save (wth the 12 inch plants) by starting your next harvest will far out way and minimal gain you get from the 24 inch plants.

iloveyou