Once everything us set up, back riveting the stiffeners to the rudder skin goes really fast, so today the r/h side only took about 45 minutes. After I finished it, I started in on the rudder skeleton, which is the next step in the plans. Nothing super hard about it. The first step has you Cleco the lower rib to the spar and drill the pilot hole in the rib flange out to 3/8" to match what's already in the spar web. Eventually the heim joint that makes up the lower rudder hinge goes through there. I started with a uni-bit to get it up to size and then finished with a 3/8" bit in a cordless drill. Came out okay. There are extra holes in both the rudder control horn and the reinforcing plate that aren't on the spar. In the picture below, I've circled them with a sharpie. They are also not shown on assembly print 7, so I checked with Vans. The word back was that they are there for the RV14 and I can either ignore them or match drill the spar and rivet them, my call. Would have been nice if they had included a note to this effect in the plans.