You should use approximately 1.75 - 2 grams of ground dry herb to fill all 16 sticks or approx. 0.125 grams per stick. If you use a little less it will be slightly easier to inhale (less draw resistance), however using less flower also means that the flower is more likely to fall out. Try not to use more than 2 grams of flower as this can make it difficult to inhale (higher draw resistance). Keep in mind that using different dry herb can have a different experience - just like with coffee!