I'm growing a strain called big bud xxl and what I have noticed so far is the the hairs (pistols) seem to change color and shrivel up long before the trichomes
seem to be ready. About 6 weeks or so into flowering the hairs changed color, shriveled up and the calyx started beefing up nicely and it confused me because based on the hairs, it seemed that I had let the plant go too long, but the trichomes were still what I considered to be clear. I even sampled the weed and it seemed low in potency, so I let it keep growing.
I've been looking for decent information as to why the hairs basically shriveled up and disappeared just as the plant seemed to be really starting to produce big buds, but cannot seem to get an answer other than go by trichomes and nothing else. Now, I might be the only one, but it is not super easy to be sure at what stage the trichomes are at, even with a microscope. The difference between clear and cloudy is not always - no pun intended - clear!
So, it's nice to use the naked eye for a final visual cue and based on my experience with Big Bud XXL, the naked eye will lead you astray. Any thoughts on that?