I'd have to agree with lilroach on this one, you probably got another couple weeks on this one but the pistils aren't really an accurate representation. I've had strains that finished with all white pistils, and i've had strains that finished well after all the pistils had already turned orange, which is why you're gonna need a pocket microscope to check the trichs. The only way you can get by without one is if you are familiar with your particular pheno the strain your growing.