Yes, you have to check the plant from top to bottom, though I've had little variety with my indoor plants at full maturity. I have waited for some plants to go more amber just to compare. If it were possible, I'd cut at 100% cloudy and not wait any longer for the trichomes to age. But nothing is ever 100%. As long as the plant looks fully mature, most new pistil growth has stopped, older pistils are drying up and the trics are not clear (well, not very many anyway) it's ready to harvest. Years ago before I knew they invented microscopes I'd harvest the same way, except for the trics, of course.