I have a question for all of you "amateur experts" that know a whole lot more than I about building airplanes. I am building the empennage of the RV-12 and in building the vertical stabilizer, there is a whole row on each side of the rear-most vertical member (almost a "spar") of blind-rivets that my rivet puller, actually, my 3 rivet pullers, cannot get in close enough to the material because of the flange to make a good finished rivet. I located a very small brass knurled nut of some sort at the hardware store that has a small hole thru it that, if placed over the rivet shaft before placing the rivet shaft into the rivet puller, it allows me to get the rivet flush with the work, ending up with a nice finished rivet. Question: The finished rivet comes out "domed" rather than flat, very much like a solid AN470 rivet, only with a hole running thru it. The dome is the result of the bottom-side of the brass piece that I am using as a spacer so that my rivet puller can stay 1/4 inch away from my work, and still pull the rivet while keeping the rivet flush with the work. Is this "domed" rivet going to be acceptable, or must they all be "flat" like the rest of the blind-rivets. The "domed" rivet actually looks better and "beefier" than the standard flat blind-rivets. If these "domed" rivets are acceptable, I might assemble the entire airplane using this "domed technique." They actually look a whole lot more refined than the standard "flat" blind-rivet. Any opinions?
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