kavvz: You say human abilities..what human abilities? What abilities are you using to "feel" how hard / where to hit a shot?
Logic and experience. When you know your clubs and ball you can look at a shot, wind and landing area and know your options.
If I'm looking at a 189 yard approach into an elevated green with wind in my face my first thought would be what about the 5I? Nope, wind will knock it down and the elevation will cause it to be short. I could use top spin and pinch that 5i but it's uphill, doesn't feel right.
Better hit the 210 4i into that wind with a little bs to stop it. The wind's blowing to the left so aim somewhere on the right side of the pin. Yeah, that seems about right now make sure you don't hit early and you're putting for that bird.
The math never really entered into the equation, it just felt right. :-)