The fuselage is not entirely symmetrical, so perhaps best L/D for fuselage is at ~2 deg?
BTW, thanks for the aerodynamic data for the 787. I would have actually expected it to operate at L/D slightly higher, than 20. Then again, it’s at high altitude and high Mach No, so the aerodynamics must be even better at low altitude. It would be great to compare it to other airplanes, eg. A330 and A359