I run 600's almost exclusively now.....
4x4 flood tables, coco in 3 gal. smart pots. I fit 12-16 per table and hit a nice 1.5-2oz. per plant on average some fall higher then 2 oz. some fall just over 1 oz. But I am hitting 1.15 gram per watt with mine.
You can run bigger pots/plants but will have to grow less plants, like 6 in 5 gallons, or etc. or you can run 4 in 10 gallons......
Or you can do the exact opposite..... smaller containers more plants.... smaller yield per plant.
Best thing you can do is
1. Keep the light as close as possible without heat issues, or bleaching.
2. Utilize as much of your light footprint as possible..... Whether is be SCROG, SOG, or other personal style.... use up every inch you can with cola growth!!!
Those are 2 of the easiest ways to get nice buds, and raise your yield.
Also as a side note, lately I have been running 12 plants ( in 3 gal. ) per 600 over a 4x4, and also fill in open middle gaps in my canopy with smaller single cola plants ( flowered clones ) in 6x6 square pots, or 1 gal. smart pots in order to fill up those little empty holes inbetween the bigger plants, since plants are round.... and generally the lights footprint is a square... it just helps me fill those inbetween empty spots between the larger plants and get a better GPW number by taking full advantage of all the light I can.