Attached upper wing spar guides. Installed right and left wings. Adjusted upper and lower guides and rollers. Rough fit of forward spar wing pins. Incidence checked on both wings. Within 0.2�n the left. Within 0.1�n the right. Slight difference between right and left at wing route. Sanded temporary rear wing spar shim down approximately 1/32 of an inch. Incidence at roots within 0.1�