While I am not a fan of cfls personally I would think you should have enough light for four plants, each plants needs 2/3 cfls to grow well. 4 plants=8-12 cfls.
To hot to continue in the same location, your "friend" had absolutely no problem going into your private closet which was closed and them showing everyone else what he has found. YOU CAN'T TRUST THEM, MOVE OR DESTROY PLANTS NOW!!!. Sorry for your crappy luck. Good luck finding a place to move...
how long did you let it veg before you switched to flower, in my experience my plants have a big growth spurt anywhere from 1 to 4 weeks into flowering and then only grow a few more inches though the rest of flowering.
as long as you can control the heat with the 600 watt your fine. In fact I wouldn't even consider using something smaller for you grow room except as a last resort because I couldn't keep the heat down enough with 600.
yeah I dropped two seedlings out my window once when my screen popped out, they feel about 7 feet into a bush completely bent the two stem in several places. I re potted them up to the leaves to support the broken stems and they both recovered in a day or two and started to grow new again.
sex is predetermine in the seed i believe, and no the only thing males are good for is pollinating females to make seeds kill asap if you want seedless bud
I have a two 400 hundred watters one MH and one HPS and my hps grow room is always hotter. Maybe it depends on the ballast two, my HPS is a florulux and my MH in a sunmaster.
91 degrees is not going to seriously hurt your plants in the next couple of days. Just make sure you keep the light high enough as you plants grow over the next couple days.