Suppose I have two beers. For the sake of argument, assume they have identical grain bills (by %). Beer #1 has OG = 1.075 and FG = 1.010, and 50 IBU, resulting in a BU:GU ratio of 0.67. Beer #2 has OHG = 1.060 and FG = 1.020, and 50 IBU, resulting in a BU:GU ratio of 0.83.
As I understand...