Following pre-inspection review decided to address the alignment of the ailerons, which Mike noticed was slightly different on the L & R wings. Indeed during the adjustment it was slightly misaligned and probably occurred during range of motion adjustments and not detected.
Started with Control Sticks safetied to true vertical and worked outward and across control surfaces to re-rig as needed to get the TE where it belonged.
Further work on the condition inspection and preparation of all aircraft logs to detail review of aircraft.