You are so right goauto6. This is one first and best tidbits that I put into my "bible"
I'm still a newb grower (only 3 grows so far) but I know for a fact that you will need to buy a jewelers scope in order to see the color of the trichomes (cloudy/light brown means ready.)
Additionally you can tell that it is not ready by looking at all of the white hairs you have on your buds.... I think its worth waiting another 1-2 weeks you will get:
1.) More yield
2.) Higher potency
i have a hadheld microsope I use to look at my trics I just know from growning photos that letin you plant go pasts harvest window results degrading thc content and idont want that th is is only my second auto.