In less severe winds, you can rotate the pace line. To do this, find which side the wind is coming from (which you can do by turning your head until you feel the wind move from one side of your nose to the other). The group closer to the wind should go a little slower, allowing the outside line to gradually move ahead. As the front rider on the outside gets far enough out front, they can move to the other line while the back rider on the inside line moves to the outside line. This constant rotation will make sure every cyclist shares time absorbing the wind.