dont worry about the pistils mate, these die off late in flower anyway, so as long as its just pistil damage then i would not worry to much, no pistils just means the plant cant take in any pollen and produce seeds, the buds will still develop as normal,
so take a few steps back from the cliff, check out how much moving air you got in your grow space, i was using cfls and well over 400 actuall watts with 23 and 30 watt cfls, i had around 15 to 20 cfls all above and hanging down the sides of the plants, i kept my lights within 2 inches of the plants and sometimes as little as 1 inch,
the main issue you might be having is lack of moving air, if the air is just sitting their and not been recirculted then the heat will build up, if this was a hps then the plant would be fried, so try and make sure you got enough air moving around, its ok having a nice confined space but you tend to have problems with heat build up at canopy level,
an option open to you and an option i took was to rig up 2x 12v computer fans blowing across the tops of the plants, you need movement of air at the canopy, you also need movement of air to move co2 over the plants,
so id rig up a fan so its blowing across the canopy, once this is done their will be no further issues, the heat is just building up by the sounds of it and the fans your using are not creating enough pressure to move air into and out of the grow space, this is whats causing the problem, the exhaust fan is not creating a vac and sucking air over the plants through the inlet, so you have sort of got dead air so to speak, you need the air moving around all the time, this is why people in bigger grow spaces use big fans, you need the movement of air to stop heat build up and it also stops any pm issues, with no moving air you will very easily got bud rot,
so if possible rig up 1 or 2 small fans, i just use 12v computer fans wired up to an adapter and i had these blowing across the tops of the plants, this was enough to get my cfls pretty much touching the plants, i could keep the grow door shut as long as the fans where running, the main problem you have is that you dont have much space above the plants, i had floor to ceiling height so the hot air was rising away from the plants, not having much space above the plants means the hot air dont have anywhere to the heat is just building up,
but for now i wouldnt worry about the pistils, if its just damaged the pistils then its not a big issue, the pistils die towards the end of flower and they die when they get pollen on them, so they plant will develop just fine with no pistils, the pistils are their just to take in pollen and help feed the calyx once its been pollenated,
so at this stage dont worry to much, just check air flower, check temp at canopy of the plants and not just in the grow space, you need the temp gauge near the plants and level with the top of the plants this will give you an accurate temp, but im pretty sure you main problem is lack of air flower across the top of the plant, you need the air moving so try and rig up a fan so their is a nice breeze across the plant/s, if their is not then you are at huge risk of pm issues and this only means plenty of bud rot, something we all try and avoid
I love that perception. 
That pistol issue may be worse than I thought. Ill post some pics and maybe you guys can talk me off the cliff. 
It looks like by the pace of this auto, its not going any faster than my first photo gals...
