you should always wait for the plant to be ready some trichomes will actually rippen after harvest but basically you want all cloudy no transparent no amber at the cut time, some will turn amber most wont, and it will have reached max potency, you'll be disappointed if you cut now believe me. some breeders have the times it takes for hydro or coco in perfect conditions so it's quicker, some count only after seedling stage.... so, trust your eyes and your microscope not a shady salesman that's my advice. Just be patient, and that's it i'm afraid, just be advised that some genetics are known to turn almost overnight, so you could go from 0 to 100 quickly just be dilligent. Hope this helps ! 🚀