This is a case where you learn the hard knocks on the first side, then you breeze through the opposite side because you now know everything. I savor these moments. Drill the rear bottom fuselage skin overhang by using a 12 inch #41 bit guided through the rear top rib flange, getting it to engage previously drilled #40 holes in the bottom rib flange and push it through the fuselage skin overhang beneath. Cleco it and move to next. Very tight clearances in there for drilling and seeing, so I used the camera on my IPhone to show me the target area and I manipulated the drill bit until it entered that previously drilled hole and come to a stop on top of the fuselage overhang skin below. Enlarge the holes to #30. You have to decide a couple hole locations after you pull the wing, but thats ok.
Moved the wing tables to the right side now.
IPhone picture trying to position and match drill through the fuselage skin overhang.