Not saying anybody is wrong, but i have flowered all the way thru before using 13/11 and it took about 3 to 4 weeks longer , but i got about a qp outta one plant using cheap drop lights with coil type cfls and 7 or 8 of those 4 ft shop lights with the double t12 cheap daylight bulbs. i done it...
I dont think that the overlapping would hurt the plants, ive saw where some bulbs put out 50,000 lumes. Im trying to figure this out myself though. I just switched to a 600 w digi hps and need a light meter.
I had five females in a cfl grow once, didnt think id get that many but i didnt have the light to support it and i got a bunch of good bud with seeds in it.