A reasonable rule is to have 1.33 gap between kites. For example, if your smallest kite is 7m then the next sizes up would be 7m x 1.33 = 9m , 9m x 1.33 = 12m , 12m x 1.33 = 16m Or if your biggest kite is 15m then the next sizes down would be 15m / 1.33 = 11m , 11m / 1.33 = 8m , 8m / 1.33 = 6m Yes,...