If i was worried about yield and nothing else - i would train, tie and top them and let them grow vegetatively until they pre-flowered before switching to 12/12.
Or i would grow a whole bunch of them, take clones as soon as i could and switch them to 12/12 - as soon as they were done, i'd move the clones in to veg for a week or so (take more clones if necessary) and right into 12/12. and you just keep going - pretty soon your system will be fine-tuned for your strains clones and getting great yield will be second nature.
I obviously have not even gotten good at the first - let alone the second. but this is all for me anyway!
Good luck man! WhiteBerry sounds so delicious.
well if my big bro is getting a chiller, im thinking so am i!
i bought my insulating foam today. my canna food, panda film and other random stuff should be here in a day or two. im going to insulate my res and see how that takes.
i also went and priced some wood today, i think the safest choice is that berchwood(sp) plywood or some shit like that. i think 4x8' panels go for 30-40 bucks a sheet. i might need a few of them. imma go with a 25" x 6' design! im so pissed the closet collapsed. i call the manager...he got pissy, so i have a good mind to go up there and put everything right in front of the door all in pieces for him
ill keep you updated!