I am trying to set the incidence on a biplane to 0 Incidence. I purchased the Great Planes Laser Incidence Meter and now am totally confused. This is what I see. I set the fuselage in a level position by somehow finding the centerline of the fuselage, (this I don't know how to find), then I draw a line. When I set the upper wing, I would measure up from the line to the rear of the trailing edge and then set the same distance from the fuselage center line to the leading edge of the wing. Is this correct? My question is then, what the hell do I use the incidence meter for? To verify the setting? I can't quite understand what good the incidence meter is, if it does not supply a way to find the centerline of the fuse, and then use this as a reference for the incidence. Am I totally off base here? Any help would be greatly appreciated.