I am curious Which activity you were you doing that you only got 3 drops, that seems very low unless you were doing 50 wave onslaughts or similar. Tonics don't focus drops, they give you additional drops for killing a lot of enemies or a chance of a drop for finishing an activity. I've been testing the tonics to see what the drop rates are like and the last Chroma Rush tonic I used dropped 10 Chroma Rush, 1 Ignition Code, and 3 Sojourner's Tale.