Brushed on the cortec (cut 50/50 with water) on all of the interior joint locations of the elevator skin.
NOTE: Gads I think I must need a 'minder'. At one point I dumped my paint reservoir on my pants...so the wife gave me a pair of sweatpants and said "Don't get anything on this" to which I pointedly said "Dahh". I then immediately ran a swipe down the elevator cutout channel (6T6-3), turned it over, and swiped down the other side, rubbing it on my pants leg (DOH!!). So I changed again (needed to toss those in the wash before the water-soluble primer dried). All good...working along, leaned down to look at a hard to see area and promply dipped my hair in the paint reservoir (see pic of paint reservoir)!