@lazuli Trichomes will not turn amber for a couple of reasons. First, some strains just won’t have 50% of the trichomes turning amber before the plant begins to senesce; they’ll show a few amber trichomes, often less than 30%. Low temperatures can also inhibit trichome development and maturity. Thus they won’t turn amber even after you extend harvesting time. Hope this helps in some way 👊🏻👍🏻🍁