aw crap. so after a day or two with the hps running, i'm 10+ deg over ambient. i headed over to the ventilation 101 thread to recheck my ventilation figures, and realized i fucked up pretty big.
i had made 8 x 1.5" holes to "double" the 6" exhaust that i was using. well of course that's flawed logic. after calculating the area of a 6" circle (28.2) and a 1.5" hole (1.8), i then divided them and realized i'd need 16 x 1.5" holes just to equal the exhaust! i can't be drilling 30 holes. it might be time to break out the roto zip again. my significant other is gonna flip.