I'm guessing that this is kind of just an experiment, so I suppose it doesn't matter if they all grow in the same pot. Idk, just kill the males off when the time comes, although they will use up valuable root space. I agree tho, they should be closer to the light. Also, since you are going 12/12 from the get go, why not use one 68w 2700k cfl from home depot? It will only cost you $15 and it will put out less heat and more lumens. In addition, with that you could avoid the fire hazard that you've got going on with the masking tape and the power strip. Just my two cents, but otherwise, keep us posted, I'd like to see how this turns out as I may try to do a 12/12 pc grow myself.
Good luck, i hope it goes well!