Judging harvest time...

I’d say take it down now to a week max. You got a weird pheno kinda as far as it being hard to tell leaf from bract/calyx But what’s important to look at is mainly the bracts/calyxes not so much sugar leaves. Now trichs can become ambered and degraded from physical touch or other factors aside from natural maturation. I try to open up the bud a bit to peak into areas that haven’t been touched by me or anything else thru it’s life cycle. Your trich shots look pretty prime depending on what effects you’re hoping for. As far as where on the plant - something getting direct light is where I look. Usually I will take a look at an upper bud and then somewhere in the middle and mentally come up with an average of where things stand given the conditions of both areas.