Set your top pin for 20, then set your second to top pin to 30 and so on. If you are shooting high move your pin high, if you are shooting left move your sight to the left. Always move towards your mistake. Start out at 10 then go to 20. Top pin is always your close pin.
"The rich....who are content to buy what they have not the skill to get by their own exertions, are the real enemies of game". Teddy Roosevelt