@Kiiara - the temp in the vial is around 400F to 420F, measured with a kitchen digital thermometer. The heater, outside the vial, is measured at 450F, but the center of the bud in the vial is about 40F cooler.
@Plant - correct, i don't grind, i feel that would just shatter and dislodge the trichomes. i just pull the bud apart with tweasers to expose the surface area and drop into the vial. i do stir after about 4 minutes into the 7.5 minute session.