HPS is not as good as people tend to think. They grow under the HPS and it does good so they think it is, but they never know what the buds would look like under the MH. I use the MH for both veg and budding. 1000 watts. Sanclem over at marihemp did a test. I think it was him anyway, and he did both at the same time, with the same strain, and the MH buds where bigger and tighter then the HPS. Personaly, I think both at the same time would be best. Some people will claim HPS is is the shit, but my expirence says MH is the shit. Actualy, the sun is the shit, but that's a mute point indoors.

Toker