Hi there Goodvibs, yeah man that's basically normal. some genetics mature evenly, some not, some less so. sometimes some phenotypes mature in stages , stage on is the main cola starting at the top, then lower, then on the latteral branches. If the difference is quite huge sometimes there's a part that will be 2 weeks away from the rest. Dont worry , if that's the case, just harvest "in stages" so harves the main cola and the top of the side branches, then the rest of the plant a bit later. so you'll have a half plant for some weeks maybe, looks a bit crazy, but it also totally works. It's important not to harvest early, that's the main idea. Hope this helps ! 🚀