sure, cut them. but really I'd google "trichome harvest chart" and compare yours with the pics and read the info too.
internet pics/advice/ is sketchy. Compare the breeder flowering suggestion times to yours, think about how much water they've been uptaking, finishing plants will take less for instance. you could cut some bud off right now and dry it for a week or so and sample it. if you like it, chop it down.