@Shagrath, Is right , you must talk about pistols ( hairs , visible at 1st sight ) and the trichomes ( so small that you need a x40 magnifier to see if they are clear , cloudy or amber ).
He is also right about the fact that you can have a 1st load of white pistols that are getting brown before you can see a second load of white pistols that will again turn brown. On the contrary the trichomes are 1st clear , then are turning cloudy/white and are finishing their life brown/amber