Matt, you get 4 H measurements on both sides regardless of the number of points. You measure the circumference of the main beam half way between the last point (G3 on the right side in your case) and the tip. If it were a spike you still get 4 circumference measurements you would just divide the beam evenly and take the measurements. It will only be 2.5 to 3 inches, but no sense in shorting yourself. I sure hope I see something that nice tomorrow.