need help deteriming harvest????

Hello this will be my 2nd harvest and i had a question thats been bugging me.
my setup is a 6 gallon home built bubblephonics system. im using a 400w conversion ballast and bulbs with hps in right now. my grow is blueberry and is 50 days into flowering (man they look tasty). My problem is that almost all the hairs are amber (about 80%), but if i put then under the microscope at 30-100x the pastels are still clear. Is this ok and should i let them go till under the scope they are 50/50 cloudy and amber and completely ignore the hairs? Any and all advise would be much appreciated. thanks

I think blueberry has a little longer flowering period than 50 days, maybe another week... just keep checking the trich's.. they'll tell you. what is the temp in your grow room during lights off?

I am no expert but i think the best thing to do is go by the cloudiness or clearness of the trichomes. pick a small bud at every stage (mostly all clear, half and half, mostly all cloudy) and see which high you like best. i would mostly ignore the pistils except as an indicator to start paying attention to the color of the trichomes.

Thats what i thought but i wasn't sure, thanks..

what is the temp in your grow room during lights off?
It stays between 65-75 but is droping quick, it's starting to get cold here.