for vert i would go wit the larger 1000w unless ur goin more then like 7.5 feet tall not including res hight. the 2 1000 give u more penetration/more width and length then the 600, but the 4 600's would give u less width and length then the 1000 but beable to give u more hight so it all...
iv seen root simulators added to the medium but not to the seed it self ... but most of the time its good wit just plain water if they old bean some peeps use a small grit sand paper and give them a lil bit of scuffing to get them to crack
i know most peeps they make it into a bush liek a big round one insted of the typical x-mas tree style plant a bit harder to recognize not much hhaha... maybe a trellis wit like grape vines spaces enuff apart to let enuff sunlight thru i alwsy thought bout doin that at my gandmas i also see some...
i think lollipop was right cfl's dont have much penetration is it getting fluffier all over or in certain parts i would dangle a few cfl's lower then the rest so at diff hights so u can kinda mimic penetrating light