I don't see the point.
I have run into more than a few shooters that can't figure out which direction to move the sight!
Even using a scope with graduated clicks it is not always correct. Too many other variables.
Besides, I find shooting to be fun.
"I am old, sick, and tired of living. If you feel the need to mess with me, go right ahead." My Uncle, with his hand on his pistol, talking to a troublemaker. 2-13-1935 -- 2-1-2013