After mounting the ailerons and flaps, attaching the control rods, the wings were ready to put on the aircraft. A little light reaming was required as the spar plates were not perfectly aligned. A consult with my neighbor IA confirmed that this was needed to not damage the bolts if they hung up on any offset plates during install. 4 total persons (brother, wife, hangar neighbor, and myself) made it easy to manage the wings and get the required alignment. The spar and bolt fit was very tight and the IA gave it his ok. 16 hours is a total of 'man-hours' (person-hours? installer-hours?) :)