[mlangsdorf]

I like the square of the margin of recoil in theory. It gives a nice curve as you center the gun on the target, and it feels about right to me from shooting skeet. Sometimes you nick the clay with a few pellets out of hundreds, and other times you turn the clay into vapor by hitting it with almost all of the pellets.

In practice, though, it's an ugly table lookup and for the likely margin range (1-8, in my experience), it has almost the same effect as 5% per margin of recoil. So go with the simpler solution and don't get distracted by the theoretically prettier answer.