While I am looting I continuously collect dark elixir from my drills. I realized that if you hit the collect icon when it appears or a couple seconds after it appears, it is actually slower than just leaving and letting it build up. I tested this out by collecting dark elixir from my drills at the same time, then leaving one to drill without touching the icon and continuously collect from the other when the icon appears. I haven't done too much experimenting with this to figure out what is happening but I thought someone on here could do it. I think this should be on the dark elixir drill trivia section.