All three holes in the closeout tabs should be dimple countersunk. The fwd two, to receive the dimples in the shear clip, and the aft one for the for the flush rivet.
A future plans revision will address this.
Maybe a Mod. could move this thread over to the plan gotchas thread?
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Van's Aircraft Engineering Prototype Shop Manager
RV-6A (aka "Junkyard Special ")