1 hr. trying to sand off the filled rivet heads only to find that I didn't put quite enough hardener in the Bondo so it was still too soft to sand.  There was some, so it will harden, but, I didn't want to wait because I had someone over to help me flip the wing.  I'll get back to finishing the bottom later.

This was a good batch.  The previous batch I think had too little hardener for it to harden in a reasonable time.

This is what it looks like when spread on the taped rivet heads.

And the wing is flipped to do the wiring and pitot tubing.

NEXT SESSIONS:

1. Wiring in.
2. Cleco leading edge back on.
3. Landing lights in and tested.  Test wing tip lights.
4. Air lines in.
5. Fitting and final sealing of left wing fuel tank.  Tank off and test for seal.
6. Inspection of both wings by EAA Tech Counselor.
7. Fuel tank on.  Just bolted at this point.
8. Top skins riveted on (STRINGERS!).  Top skins of left wing need priming.  Fill rivets with Bondo.
9. Leading edge riveted on (STRINGER!).  Fill rivets with Bondo.
10. Rivet fuel tank on.  Fill rivets with Bondo.
11. Wing tip assembly and light installation.
12. Finish sanding of left wing bottom rivet heads.
13. Finish right wing (7,8,9,10,11).  Also Bondo for bottom skin of right wing.
14. Finally finish one of the composite tips of the elevator.
15. Fill rivets of elevator with Bondo.
16. START ON FUSELAGE!