Are they ready? Dont want sativas to lose energising effect.

When you are ready to harvest, in the week of your harvesting window, stop feeding your plant and just use PH'd water. Let the plant dry out the day before you cut her, it will make the drying process faster if she isn't full of water.

There are still little pistils (white hairs) reaching like it still wants to grow. The best way to check though is via a jewelers loop or camera that can take micro photos. If the trichomes are clear or glass like then it is not ready. If the trichomes are cloudy or milky then that is when THC is going to be at its highest and is going to give you more of a head high. If the trichomes are mostly amber, that means the plant is at its most mature stage (more CDB) and will give you more of a couch locked high. I usually try to go for 80% cloudy and 20% amber for a more energizing effect.