well about 75% of the bud should be amber, and if you go to a Lowes or some tool store and buy a work lamp remove the safety glass thats in front of it that lamp will put off a high dose of ultra violet radiation which will trich your bud to an almost snow look and an increase in potentcy, but only for 2 or 3 times out of the day for 3 mins per plant till harvest, about 2 weeks before you harvest and all around the plants and bud but for only 3 mins or it will burn your plant . keep smoking bro and thanx for info heres what that work lamp does, these are my aurora my last grow.