When I cleco'ed the horizontal stab togather for drilling I had noticed the main root rib (HS00005. It is the new design rib that replaced the HS405 released with the recent SB) I had noticed that the length flanges barely make it under the fwd spa HS702 and skin. I am not worried about the spar flange as this part will be removed as per the recent SB but the skin is an issue.
As you can see from the pictures there is no way I can drill skin because it will just go through the edge of the flange.
On the same topic, the SB-14-01-31 figure 5 at page 8 it calls for drilling the most forward hole to be drilled to size #27 which confused me as the original instructions and plans called for #40 and is that applied only on the flange or even the skin?