In real life, playing in the elements, wind with 10-12 mph, counts as one club, up or down.
With wind left to right or right to left, aim right or left 10-12 feet of pin. With left or right wind, I use same club length. What's real about this game, is there is no exact formula, just some creative shot making, like the real life game.
Putting in the wind, count one ball width with 10-12 mph winds. So much to consider, but don't panic or slow down the group. Jack Nicolas slowed down his group all the time, and was painful to watch.