Hmmm. Well, first of all...when you say you used a 400w "HID" for vegging, do you mean a MH? Many people confuse the terms. The best way I could explain it is:

HID (High Intensity Discharge)
----MH (metal halide)
----HPS (high pressure sodium)

I'm also a little discouraged by the fact that you got such airy/fluffy buds using HID lamps. How close did you keep your lights?

TGF