i just can say that, after having played thousands of ranked games, have been working in my mind billions of evaluations concerning winds, uplvels, downlevels, ball rollings, spins, overdings, underdings, percentages on shots powerings, the best thing is ... experience! my brain has been computing all of this factors for years, and nowadays i just hit as per feeling. that's the most real-simulating game i saw ever. by the way, if i have to state a mathematical law, i can say that the more you get better clubs and balls, the factors you have to face become fewer. i mean, if you have to calculate tons of things with starter wgt clubs, when you get better clubs they automatically lower the factors.
P.S: sometimes i play a good round: hole 15, -8. double bogey, ruined round. Hole 16, on the approach shot i just go with the felling, being sick of computing: 1 yard by the hole! JUST FEELING IT!!