u say u have a 400w on them now?? i can see sum has lot of growth did u top or fimm them?? from what i see the ones with alot of outwards growth will be nothing but a good thing as i fimmed the ones i had and out of 6 tom plants i had 40 tops so..is the 400w a 400w or abunch of cfls to make 400w?? i'd say drop the lights a lil closer if u can just do the hand test to see how close u can get the light if its cfls u can get them about 5inches away and be fine.