Got the rivets that join the 405 horn/802 spar/704 rib (with nutplate) shot & bucked. After a mock up of the lower end, it appears that I cannot get a squeezer lined up to mash the rivet in the last hole that joins the 710/704/skin. So, I drilled the hole to 1/8” and dimpled. This will allow the optional CS4-4 blind rivet to sit flush.
