From time to time, I have seen post where it is mentioned folks carry a mechanical in case they need to take a long range shot or follow up shot. I am not sure I follow the thought process. Considering it takes more energy to drive a mechanical home at all distance vs. a COC why would the choice be to choose the heads in reverse order? The logical choice to me would be to use a low profile COC head as a long range shot or follow up shot head choice to ensure the highest down range performance. What am I missing?