By the way... how did you guys apply the Bug Buster-O (or other pyrethrin-based products)? I did it by pouring about 1/3 gallon of BBO solution (40%, or ~1tbsp/gal) through a 2-gallon pot of coco. Got a decent amount runoff (medium was already moist/wet). Then roughly an hour later, I flushed a few times with a nutrient solution, and emptied the runoff right away (you can smell the petroleum distillates). Maybe plain water would have been better?