Due to updated factory instructions, had to un-cleco left side skin to reposition the three tabs 18,19,20. In previous instruction versions these tabs were clearly depicted on the lower flange of the ribs and trim tab mounting channel although not specifically mentioned in text. After noticing the recent instructions version now calls these three parts out in the text and requires they be on the upper flange of the ribs/mounting channel.
Put everything back together, including the tips and rechecked alignment with horizontal stabilizer.