...Wing incidence inspection...Advice from Rick included putting gear mounts in to stiffen spar before removing wing for filing. Install flaps after the wing is drilled and while the wing is on, after drilling, mark the underside of fuselage for nutplate placement. Use outer aileron bolt attachment for each wing as a measurement point to the forward inside fabrication hole in the horiz. stab. as the other measurement point. The stabilizer was equalized upon installation.