-Pulled out the clecos holding the rear spar assembly to the rest of the HS -Put in the 4 rivets I left out of the rear spar assembly with the squeezer. -Marked and drilled out the 4 rivets I needed to remove. I’m still having problems getting the drill bit right on the center of the rivet. I’m still using a 1/16” bit to get it started. Followed the 1/16” hole with the #40 bit and then the 3/32” punch to break the head off. I think only one of the four heads came cleanly off. I used a small chisel to get the rest of the rivet head off and then the punch to get the shank out. -Scuffed the holes up where I had scratched the primer removing the rivets and gave them a shot of primer. -Re-assembled the HS. Ready now for the last rivets to finish this part off -No pictures