ok ******* (team_3wisemen), why are you hasteling ciaran?
1) his chart is about as accurate as you're going to get up until you can actually try it out with YOUR set up. There is proven math behind it, you can search on line for the math, but I'm not going to, it's not worth my time.
2) Cockers can be the most efficient markers around IF they are set up properlly. If they are set up incorrectly, they can be rotten for efficiency. So the reason ONE person has posted a question as how to get "cockers to be less gas hungry" is because their particular cocker is not set up correctly.
People will be alot nicer to you and be more apt to answer your questions if you stop being an *******.
-Micah