Riveted the spar to the top side of elevator skin. This is a tough maneuver for one person. I made a couple of rivet gun marks on the skin, so I hauled it over to a fellow builder's hangar for an opinion. Not structural problem and a little sanding and filler will smooth it out. I need to be a little less macho and ask for help occasionally to prevent this kind of boo-boo.
Attached and riveted the counterbalance assembly and bottom of trim spar to skin. This was after the bottom of the skin was riveted to the main elevator spar - mostly with blind rivets.
