Honestly, a good way to be thorough for me, is by comparing the sections exposed with direct light vs the lowest sections that received the least light. Immediately you might notice a difference there. The other thing I consider is bud volume. If it’s a big fat cola with lots of interior mass, or smaller golf ball sized nuggets with limited interiors. I’ve noticed more often than not, the direct exterior layer that is exposed to the light and air, ripens faster than interior sections of the larger nuggets/colas. This is more of a factor with sativas I notice. Also exterior trichs can ripen prematurely in outdoor grows or even indoor grows from just the elements, like heat, light, and wind. Normally indoors this is minimal, but it can be significant at times when growing outdoors. I’d say look for a general consensus between the top and underbelly sections of your big prime time nuggets and again on whatever lower nuggets. Also, how does her hair look? Lol seriously though, are most of the pistils shriveled and amber/red/brown? Or is there still a significant amount of new white hairs developing. If so, where? If it’s all over or just on lower sections? These are all things I consider to help me decide where on the plant to chop and when. If I am able to chop the whole plant or go in sections. Sometimes throughout the grow, subtle underlying factors can easily hasten or prolong the flowering time. Sometimes they finish earlier, and sometimes a 50-60 day strain gets chopped on day 74! For whatever reason, being phenotypic variations or environmental conditions or a combination, some plants end up needing more time to ripen than others. Also, if there is only a small number of white hairs remaining and your at complete with the calendar, it’s very possible that the trichs will not become as milky as you would like. I’ve watched multiple plants stop putting out new calyxes at the end of flower to only have 50% milky trichs at BEST! And then I watched them go amber before any got more cloudy. So the 50% milky appearance was the peak for that strain/pheno. That’s why I recommend consulting a number of factors. I didn’t checkout your diary yet, but sometimes you can even use the conditions of the leaves to help you determine, but that’s a very subjective element with bigger room for error. But the leaves can help to show you potentially how much energy the plant still has. But it all depends on a number of factors. Looks can be deceiving, sometimes she looks done but has another week and a half. Other times she’s done but doesn’t look that cloudy, with more of a clear appearance than I’d like, but still comes out potent. Hope this all helps you to make the best decision. If you feel like you chopped too early, you’d still surprise yourself with what potency those buds already had! Happy Growing! 💪🌳👌