Pistills darken

Looks like the hairs are just doing their thing to me.....they will usually start to darken like that first, then get that dried out look when they're ready for harvest, but don't use them as your only indicator for harvest. When they get that dried out look, that's when ill get in there with the magnifier and look at some tricomes. I wouldn't worry, looks like its doing what its supposed to be doing to me. Sometimes if you bump them, or they get touched they will start to wither up quicker than other pistils around it do. Looks really healthy to me, awesome job. You'll be happy with the end results in a few weeks I'm sure 👍